Ch 5 5.8
•Download as PPTX, PDF•
0 likes•93 views
Large particles and bulk substances can move across membranes through three main processes: vesicle movement, exocytosis, and endocytosis. Vesicles containing proteins and lipids are produced in the endoplasmic reticulum and Golgi apparatus and move to and fuse with the plasma membrane through exocytosis. Endocytosis involves the cell taking in extracellular fluid and its contents through invagination of the plasma membrane. Phagocytosis is a form of endocytosis where the cell engulfs larger particles through membrane folding. Exocytosis and endocytosis provide a balance of membrane addition and withdrawal at the cell surface.
Report
Share
Report
Share
Recommended
Lesson 3 cell membrane and transport 14-15
The document discusses transport across the cell membrane. It describes the cell membrane as semipermeable, allowing some molecules to pass through but not others. There are two types of transport: passive and active. Passive transport includes diffusion, facilitated diffusion, and osmosis, and occurs without energy. Active transport moves molecules against their concentration gradient and requires energy. Osmosis is the specific movement of water across the membrane from an area of lower solute concentration to higher.
Cell Transport
The document discusses various processes of cell transport, including passive transport mechanisms like diffusion and osmosis that move materials across the cell membrane towards equilibrium without energy usage, as well as active transport processes like endocytosis, exocytosis, and facilitated diffusion that move materials against concentration gradients by using energy. It introduces key terms related to cell transport and membrane structure, and outlines the different needs that must be met to maintain homeostasis within the cell.
Class 9 Science Bio CH 1 Session 3
The document discusses the endoplasmic reticulum (ER), which is a membrane-bound organelle present in the cytoplasm that forms an interconnected network of tubes and sheets. The ER exists in three forms - cisternae, vesicles, and tubules. Cisternae are flattened sacs that fold proteins, vesicles shuttle proteins between the ER and Golgi apparatus, and tubules transport reactants during biomolecule synthesis. The ER also exists as rough ER with ribosomes on its surface to synthesize proteins, and smooth ER without ribosomes to manufacture lipids. The ER functions include protein and lipid synthesis, hormone production, detoxification, membrane formation, transport between cytoplasm and nucleus, and maintaining cytoplasmic structure.
Ap bio ch5membranes
The document summarizes key concepts about membrane structure and function. It describes the fluid mosaic model of the plasma membrane and discusses membrane proteins and their functions. It also outlines different modes of passive and active transport across the membrane, including diffusion, osmosis, and transport via carrier proteins. Finally, it briefly reviews cell surface modifications and junctions in animal and plant cells.
Plant cell wall.pptx
The cell wall surrounds plant, bacteria, fungi, algae and some archea cells but not animal and protozoa cells. It provides structural support and protection. The cell wall has three layers - the middle lamella, primary cell wall and sometimes a secondary cell wall. The primary cell wall contains cellulose, hemicellulose, pectin and cutin/wax. Secondary cell walls contain lignin. Cell walls are formed from the cell plate during cell division and provide shape and structure to cells while allowing for communication through pits. The main functions of the cell wall are mechanical strength, security, storage, communication and protection.
Cell organelles- histology
The document summarizes various cell organelles and their functions. The main organelles discussed include the nucleus, which contains the cell's genetic material; the endoplasmic reticulum, which is involved in protein synthesis and transport; ribosomes, which play a role in protein synthesis; mitochondria, the site of cellular respiration; the Golgi complex, which modifies and packages proteins and lipids; lysosomes, which contain digestive enzymes; and peroxisomes, which contain oxidative enzymes. The document also briefly mentions phagosomes, pinocytotic vesicles, and exocytotic vesicles, which are involved in ingestion and secretion, as well as secretory granules and cell contacts between adjoining cells.
Final cytoplasm and cytoskeleton
The cytoskeleton is a network of fibers that extends throughout the cytoplasm and is composed of three main structures: microtubules, microfilaments, and intermediate filaments. Microtubules help shape and support the cell, act as roads for organelles, and aid in cell division. Microfilaments support cell shape and allow for cell movement. Intermediate filaments reinforce cell shape and anchor organelles. The cytoplasm contains cytosol and organelles suspended in a fluid and performs many biochemical reactions, growth, transport, and breakdown of macromolecules.
7 - Membrane Structue and Function
در زیست شناسی کمپبل با صراحت و روشنی ذکر شده است: "غشای پلاسمایی که سلول را احاطه کرده است را میتوان به عنوان لبه حیات دانست، مرزی که سلول زنده را از محیط اطراف خود جدا میکند." در این اسلاید، ما سعی میکنیم یاد بگیریم که چگونه غشای سلولی، عبور مواد مختلف را با اندازهها و ماهیت مختلف کنترل میکند.
---------------------------------------------------------------------------------------------
It is neatly mentioned in Campbell Biology: “The plasma membrane that surrounds the cell can be considered the edge of life, the boundary that separates a living cell from its surroundings.” In this slide, we try to learn how cellular membrane controls the passage of different substances of different size and nature.
Recommended
Lesson 3 cell membrane and transport 14-15
The document discusses transport across the cell membrane. It describes the cell membrane as semipermeable, allowing some molecules to pass through but not others. There are two types of transport: passive and active. Passive transport includes diffusion, facilitated diffusion, and osmosis, and occurs without energy. Active transport moves molecules against their concentration gradient and requires energy. Osmosis is the specific movement of water across the membrane from an area of lower solute concentration to higher.
Cell Transport
The document discusses various processes of cell transport, including passive transport mechanisms like diffusion and osmosis that move materials across the cell membrane towards equilibrium without energy usage, as well as active transport processes like endocytosis, exocytosis, and facilitated diffusion that move materials against concentration gradients by using energy. It introduces key terms related to cell transport and membrane structure, and outlines the different needs that must be met to maintain homeostasis within the cell.
Class 9 Science Bio CH 1 Session 3
The document discusses the endoplasmic reticulum (ER), which is a membrane-bound organelle present in the cytoplasm that forms an interconnected network of tubes and sheets. The ER exists in three forms - cisternae, vesicles, and tubules. Cisternae are flattened sacs that fold proteins, vesicles shuttle proteins between the ER and Golgi apparatus, and tubules transport reactants during biomolecule synthesis. The ER also exists as rough ER with ribosomes on its surface to synthesize proteins, and smooth ER without ribosomes to manufacture lipids. The ER functions include protein and lipid synthesis, hormone production, detoxification, membrane formation, transport between cytoplasm and nucleus, and maintaining cytoplasmic structure.
Ap bio ch5membranes
The document summarizes key concepts about membrane structure and function. It describes the fluid mosaic model of the plasma membrane and discusses membrane proteins and their functions. It also outlines different modes of passive and active transport across the membrane, including diffusion, osmosis, and transport via carrier proteins. Finally, it briefly reviews cell surface modifications and junctions in animal and plant cells.
Plant cell wall.pptx
The cell wall surrounds plant, bacteria, fungi, algae and some archea cells but not animal and protozoa cells. It provides structural support and protection. The cell wall has three layers - the middle lamella, primary cell wall and sometimes a secondary cell wall. The primary cell wall contains cellulose, hemicellulose, pectin and cutin/wax. Secondary cell walls contain lignin. Cell walls are formed from the cell plate during cell division and provide shape and structure to cells while allowing for communication through pits. The main functions of the cell wall are mechanical strength, security, storage, communication and protection.
Cell organelles- histology
The document summarizes various cell organelles and their functions. The main organelles discussed include the nucleus, which contains the cell's genetic material; the endoplasmic reticulum, which is involved in protein synthesis and transport; ribosomes, which play a role in protein synthesis; mitochondria, the site of cellular respiration; the Golgi complex, which modifies and packages proteins and lipids; lysosomes, which contain digestive enzymes; and peroxisomes, which contain oxidative enzymes. The document also briefly mentions phagosomes, pinocytotic vesicles, and exocytotic vesicles, which are involved in ingestion and secretion, as well as secretory granules and cell contacts between adjoining cells.
Final cytoplasm and cytoskeleton
The cytoskeleton is a network of fibers that extends throughout the cytoplasm and is composed of three main structures: microtubules, microfilaments, and intermediate filaments. Microtubules help shape and support the cell, act as roads for organelles, and aid in cell division. Microfilaments support cell shape and allow for cell movement. Intermediate filaments reinforce cell shape and anchor organelles. The cytoplasm contains cytosol and organelles suspended in a fluid and performs many biochemical reactions, growth, transport, and breakdown of macromolecules.
7 - Membrane Structue and Function
در زیست شناسی کمپبل با صراحت و روشنی ذکر شده است: "غشای پلاسمایی که سلول را احاطه کرده است را میتوان به عنوان لبه حیات دانست، مرزی که سلول زنده را از محیط اطراف خود جدا میکند." در این اسلاید، ما سعی میکنیم یاد بگیریم که چگونه غشای سلولی، عبور مواد مختلف را با اندازهها و ماهیت مختلف کنترل میکند.
---------------------------------------------------------------------------------------------
It is neatly mentioned in Campbell Biology: “The plasma membrane that surrounds the cell can be considered the edge of life, the boundary that separates a living cell from its surroundings.” In this slide, we try to learn how cellular membrane controls the passage of different substances of different size and nature.
6 - A tour of the cell - Part Three
دیواره سلولی، شکل ویژهای از ماتریس خارج سلولی است که هر سلول گیاه را احاطه کرده است. دیواره سلولی مسئول بسیاری از خصوصیاتی است که سلولهای گیاهی را از سلولهای حیوانی متمایز میکند. در سلولهای حیوانی داستان متفاوت است! بافتهای مختلف دارای اجزا و سازمان منحصر به فرد و تخصصی ماتریس خارج سلولی (ECM) هستند، که هر ECM را قادر میسازند تا نقشهای خاص بافتی، از جمله پشتیبانی ساختاری، انتقال نیروها و فیلتراسیون ماکرومولکولی را انجام دهد.
-----------------------------------------------------------------------------------
Cell wall, specialized form of extracellular matrix that surrounds every cell of a plant. The cell wall is responsible for many of the characteristics that distinguish plant cells from animal cells. In animal cells, the story is different! Different tissues have unique and specialized Extracellular Matrix (ECM) components and organization, which enables each ECM to carry out tissue-specific roles, including structural support, the transmission of forces and macromolecular filtration.
5 - A tour of the cell - Part Two
در روزهای اولیه میکروسکوپ الکترونی، زیست شناسان تصور میکردند که اندامک سلول یوکاریوتی آزادانه در سیتوزول شناور است. اما پیشرفت های انجام شده در تکنولوژی ساخت میکروسکوپهای نوری و الکترونی نشان داده است که شبکهای از فیبرها در سراسر سیتوپلاسم گسترش یافته است و آنها آن را اسکلت سلولی نامیده اند.
--------------------------------------------------------------------------
In the early days of electron microscopy, biologists thought that the organelles of a eukaryotic cell floated freely in the cytosol. But improvements in both light microscopy and electron microscopy have revealed that a network of fibers is extended throughout the cytoplasm and they named it the cytoskeleton.
Chapter3a
This document discusses the structure and functions of the plasma membrane. It notes that the plasma membrane defines the cell boundary, is selectively permeable, and mediates transport of substances and cell-cell interactions. The document also describes different types of membrane transport including passive transport mechanisms like diffusion, osmosis, and filtration as well as active transport processes. Specific transport proteins and their roles in channel-mediated, carrier-mediated, and osmotic transport are also outlined.
Grade 11 - Cell Membran and Transport
The fluid mosaic model of cell membranes proposes that membranes are composed of a phospholipid bilayer with proteins distributed throughout. In this model:
1) Proteins are embedded within and move freely along the phospholipid bilayer.
2) The phospholipid bilayer acts like a liquid, allowing membrane components to diffuse freely.
3) Integral proteins either span the entire bilayer or are partially embedded within one leaflet of the bilayer.
Cell membran
The cell membrane is composed of a lipid bilayer with embedded proteins. It separates the interior of the cell from the external environment. The major components of the cell membrane are lipids and proteins. Phospholipids form the lipid bilayer, with their hydrophobic tails facing each other and hydrophilic heads facing outwards. This arrangement forms a selectively permeable barrier. Membrane proteins are embedded in the lipid bilayer and perform functions like transport, signaling and enzymatic activity. The fluid mosaic model describes the cell membrane as a fluid structure with proteins scattered within the phospholipid bilayer. The cell membrane regulates what enters and exits the cell and also performs other roles like cell adhesion and protection.
4 - A tour of the cell - Part One
سلولها به همان اندازه اتمها در شیمی، برای سیستمهای زنده اساسی هستند. هم اکنون انواع مختلفی از سلول ها در بدن ما کار میکنند. در طول تکامل، سلولها به روشهای مختلف اصلاح شدهاند. اگرچه سلولها میتوانند تفاوت اساسی با یکدیگر داشته باشند، اما ویژگیهای مشترکی دارند. در این اسلاید و 2 مورد بعدی، ما سفری به درون یک سلول خواهیم داشت و با اجزای سازنده آن آشنا خواهیم شد.
----------------------------------------------------------------------------
Cells are as fundamental to the living systems of biology as the atom is to chemistry. Many different types of cells are working in our body right now. During the evolution, cells have been modified in many different ways. Although cells can differ substantially from one another, they share common features. In this slide and the next 2 ones, we’ll take a tour inside a cell and become acquainted with its components.
Passive Transport
There are two main types of cellular transport - passive and active. Passive transport does not require energy and includes diffusion, facilitated diffusion, and osmosis. Active transport moves molecules against their concentration gradient and requires energy from ATP. The sodium-potassium pump is an example of active transport, moving sodium and potassium ions across the cell membrane against their gradients. Large molecules are transported across membranes via endocytosis and exocytosis using vesicles.
Chapter3a
Spring 2010 chapter 3a PowerPoint for BIOL2401 (Human Anatomy & Physiology) at San Antonio College with Alba
Passive Transport
Passive transport across the plasma membrane can occur through simple diffusion of molecules like water, or through transport proteins. Transport proteins include channel proteins that form channels for molecules to pass through simultaneously without energy input, and carrier proteins that bind molecules and change shape to transport them one by one against the concentration gradient through facilitated diffusion, requiring no energy from the cell. All of these examples of passive transport rely on molecular movement down a concentration gradient without cellular energy input.
Plant biochemistry: cell wall, structure and composition
It describes the cell wall and its components and their structures in detail including cellulose, hemicellulose and pectin in detail.
Tightjunction a&pmuih
Tight junctions occur between epithelial cells and perform three key functions:
1) They form an impermeable seal between cells to prevent substances from passing through the space between cells (barrier function).
2) They maintain cell polarity by determining the role of each cell.
3) They assist in the fusion of cell membranes. Tight junctions are found wherever epithelial tissue exists in the body, including the digestive tract, skin, blood vessels, and organs. They play an important role in conditions like leaky gut by regulating what passes from the intestines into the bloodstream.
Cellular structure and function
- In the 1600s, van Leeuwenhoek and Hooke used early microscopes to observe cells, the basic unit of life, for the first time in pond water and plant tissues.
- In the 1830s-1850s, scientists including Schleiden, Schwann, and Virchow developed the cell theory, concluding that all organisms are composed of cells, the cell is the basic unit of structure and organization, and all cells come from pre-existing cells.
- The development of electron microscopes in the 1930s allowed observation of intracellular structures and organelles and revealed two basic cell types: prokaryotic cells without membrane-bound organelles and eukaryotic cells with membrane-bound
Anju ppt
The document lists and provides brief descriptions of the major organelles in a cell:
- The cell membrane contains the organelles and is selectively permeable.
- The cytoplasm holds the organelles and is a jelly-like substance.
- The nucleus contains the cell's DNA and controls the cell.
- Mitochondria produce and store energy for the cell.
- The endoplasmic reticulum conducts materials within the cell.
- Ribosomes are involved in protein synthesis.
- The centrosome and centrioles play a role in cell division.
- Lysosomes contain digestive enzymes.
- The Golgi complex collects cell secretions in vesicles.
Cell membranes m pr
Cell membranes are composed of a phospholipid bilayer with intrinsic and extrinsic proteins embedded. The phospholipid bilayer forms a partially permeable barrier through which selective transport of molecules can occur. Intrinsic proteins span the bilayer and facilitate both passive diffusion of small molecules down a concentration gradient, as well as active transport of molecules against a gradient using energy from ATP. Together, the fluid phospholipid bilayer and embedded transport proteins allow cells to control what enters and exits across the membrane.
Plant biochemistry: plant tissues
This slides gives the detailed information about the plant tissues: meristematic and permanent (both simple and complex plant tissues) that make up the plant.
Animal cell anatomy power point
The document discusses the basic anatomy of an animal cell. It describes the key organelles that make up the cell, including the cell membrane, nucleus, mitochondria, Golgi body, endoplasmic reticulum, lysosomes, and vacuoles. It explains the basic functions of these organelles, such as how the mitochondria produces energy, the Golgi body packages proteins, and the nucleus controls cell activities and contains DNA. The document also notes that while all cells have the same basic components, they can perform different functions and this allows for diversity within organisms.
Nscu 302 wk 2 3
The document discusses the cellular level of organization. It describes the key components of eukaryotic cells including the plasma membrane, nucleus, and cytoplasm. The plasma membrane separates the cell from its external environment and regulates the exchange of materials. It is made up of a phospholipid bilayer with embedded proteins that allow for selective permeability and transport. The nucleus contains the cell's DNA, and the cytoplasm contains organelles and cytosol.
Cell cell interactions
Plasmodesmata are cytoplasmic channels that connect plant cells and allow communication between them. They form during cell division around elements of the endoplasmic reticulum that become trapped in the cell wall. Plasmodesmata vary in structure and number, ranging from less than 1 to over 15 per square micrometer of cell wall. They function to transport molecules, nutrients, and signals between cells, facilitating intercellular communication and transport throughout plant tissues.
Eukaryotes
Eukaryotic cells are larger and more complex than prokaryotic cells, containing membrane-bound organelles and a nucleus. Key structures include a cell membrane and cytoplasm, as well as organelles like the endoplasmic reticulum, mitochondria, plastids, flagella, and cilia. Eukaryotic cells reproduce through both asexual and sexual means, with sexual reproduction involving meiosis to produce daughter cells with half the number of chromosomes.
transport across cell membranes
Facilitated diffusion is the passive transport of molecules across a cell membrane using carrier proteins. There are two main types of carrier proteins: carrier proteins that bind to specific molecules and undergo a conformational change to transport them across the membrane, and ion channels that have pores lined with charged groups to transport ions. Facilitated diffusion is saturated at high concentration differences because there are a limited number of carrier proteins.
Myosin II activation and actin re-organization regulate the mode of quantal e...
Chromaffin cells of the adrenal medulla are innervated by the sympathetic nervous system. Stimulation causes chromaffin cells to fire action potentials leading to the exocytosis of various classes of transmitters into the circulation. Low frequency electrical stimulation (action potentials delivered at 0.5 Hz) causes adrenal chromaffin cells to selectively release catecholamines through a kiss-and-run fusion event. Elevated electrical stimulation (action potentials at 15 Hz) evokes fusion pore dilation, full granule collapse and additional release of the neuropeptide-containing proteinacious granule core. Here we apply single-cell electrophysiological, electrochemical and fluorescence measurements to investigate the cellular mechanism for this shift in exocytic behavior. We show that at low frequency stimulation, a filamentous-actin cell cortex plays a key role in stabilizing the kiss-and-run fusion event. Increased stimulation disrupts the actin cortex, driving full granule collapse. We show pharmacological perturbation of the actin cortex supersedes stimulus frequency in controlling exocytic mode. Finally, we show that non-muscle myosin II activation contributes to the cytoskeleton-dependent control of the fusion event. Inhibition of myosin II or myosin light chain kinase under elevated stimulation frequencies inhibits fusion pore dilation and maintains the granule in a kiss and run mode of exocytosis. These results demonstrate an essential role for activity-evoked cytoskeletal re-arrangement and the action of myosin II in the regulation of catecholamine and neuropeptide exocytosis and represents an essential element of the sympathetic stress response.
Ch.5 active transport, endocytosis, and exocytosis By Hamdy Karim
The document discusses active transport, endocytosis, and exocytosis in cells. It explains that active transport uses energy to move materials against their concentration gradient using transport proteins. Endocytosis and exocytosis transport materials across membranes within vesicles - endocytosis transports materials into the cell within vesicles formed by infoldings of the membrane, while exocytosis releases materials from vesicles fusing with the outer membrane. The document provides examples of these processes in cells.
More Related Content
What's hot
6 - A tour of the cell - Part Three
دیواره سلولی، شکل ویژهای از ماتریس خارج سلولی است که هر سلول گیاه را احاطه کرده است. دیواره سلولی مسئول بسیاری از خصوصیاتی است که سلولهای گیاهی را از سلولهای حیوانی متمایز میکند. در سلولهای حیوانی داستان متفاوت است! بافتهای مختلف دارای اجزا و سازمان منحصر به فرد و تخصصی ماتریس خارج سلولی (ECM) هستند، که هر ECM را قادر میسازند تا نقشهای خاص بافتی، از جمله پشتیبانی ساختاری، انتقال نیروها و فیلتراسیون ماکرومولکولی را انجام دهد.
-----------------------------------------------------------------------------------
Cell wall, specialized form of extracellular matrix that surrounds every cell of a plant. The cell wall is responsible for many of the characteristics that distinguish plant cells from animal cells. In animal cells, the story is different! Different tissues have unique and specialized Extracellular Matrix (ECM) components and organization, which enables each ECM to carry out tissue-specific roles, including structural support, the transmission of forces and macromolecular filtration.
5 - A tour of the cell - Part Two
در روزهای اولیه میکروسکوپ الکترونی، زیست شناسان تصور میکردند که اندامک سلول یوکاریوتی آزادانه در سیتوزول شناور است. اما پیشرفت های انجام شده در تکنولوژی ساخت میکروسکوپهای نوری و الکترونی نشان داده است که شبکهای از فیبرها در سراسر سیتوپلاسم گسترش یافته است و آنها آن را اسکلت سلولی نامیده اند.
--------------------------------------------------------------------------
In the early days of electron microscopy, biologists thought that the organelles of a eukaryotic cell floated freely in the cytosol. But improvements in both light microscopy and electron microscopy have revealed that a network of fibers is extended throughout the cytoplasm and they named it the cytoskeleton.
Chapter3a
This document discusses the structure and functions of the plasma membrane. It notes that the plasma membrane defines the cell boundary, is selectively permeable, and mediates transport of substances and cell-cell interactions. The document also describes different types of membrane transport including passive transport mechanisms like diffusion, osmosis, and filtration as well as active transport processes. Specific transport proteins and their roles in channel-mediated, carrier-mediated, and osmotic transport are also outlined.
Grade 11 - Cell Membran and Transport
The fluid mosaic model of cell membranes proposes that membranes are composed of a phospholipid bilayer with proteins distributed throughout. In this model:
1) Proteins are embedded within and move freely along the phospholipid bilayer.
2) The phospholipid bilayer acts like a liquid, allowing membrane components to diffuse freely.
3) Integral proteins either span the entire bilayer or are partially embedded within one leaflet of the bilayer.
Cell membran
The cell membrane is composed of a lipid bilayer with embedded proteins. It separates the interior of the cell from the external environment. The major components of the cell membrane are lipids and proteins. Phospholipids form the lipid bilayer, with their hydrophobic tails facing each other and hydrophilic heads facing outwards. This arrangement forms a selectively permeable barrier. Membrane proteins are embedded in the lipid bilayer and perform functions like transport, signaling and enzymatic activity. The fluid mosaic model describes the cell membrane as a fluid structure with proteins scattered within the phospholipid bilayer. The cell membrane regulates what enters and exits the cell and also performs other roles like cell adhesion and protection.
4 - A tour of the cell - Part One
سلولها به همان اندازه اتمها در شیمی، برای سیستمهای زنده اساسی هستند. هم اکنون انواع مختلفی از سلول ها در بدن ما کار میکنند. در طول تکامل، سلولها به روشهای مختلف اصلاح شدهاند. اگرچه سلولها میتوانند تفاوت اساسی با یکدیگر داشته باشند، اما ویژگیهای مشترکی دارند. در این اسلاید و 2 مورد بعدی، ما سفری به درون یک سلول خواهیم داشت و با اجزای سازنده آن آشنا خواهیم شد.
----------------------------------------------------------------------------
Cells are as fundamental to the living systems of biology as the atom is to chemistry. Many different types of cells are working in our body right now. During the evolution, cells have been modified in many different ways. Although cells can differ substantially from one another, they share common features. In this slide and the next 2 ones, we’ll take a tour inside a cell and become acquainted with its components.
Passive Transport
There are two main types of cellular transport - passive and active. Passive transport does not require energy and includes diffusion, facilitated diffusion, and osmosis. Active transport moves molecules against their concentration gradient and requires energy from ATP. The sodium-potassium pump is an example of active transport, moving sodium and potassium ions across the cell membrane against their gradients. Large molecules are transported across membranes via endocytosis and exocytosis using vesicles.
Chapter3a
Spring 2010 chapter 3a PowerPoint for BIOL2401 (Human Anatomy & Physiology) at San Antonio College with Alba
Passive Transport
Passive transport across the plasma membrane can occur through simple diffusion of molecules like water, or through transport proteins. Transport proteins include channel proteins that form channels for molecules to pass through simultaneously without energy input, and carrier proteins that bind molecules and change shape to transport them one by one against the concentration gradient through facilitated diffusion, requiring no energy from the cell. All of these examples of passive transport rely on molecular movement down a concentration gradient without cellular energy input.
Plant biochemistry: cell wall, structure and composition
It describes the cell wall and its components and their structures in detail including cellulose, hemicellulose and pectin in detail.
Tightjunction a&pmuih
Tight junctions occur between epithelial cells and perform three key functions:
1) They form an impermeable seal between cells to prevent substances from passing through the space between cells (barrier function).
2) They maintain cell polarity by determining the role of each cell.
3) They assist in the fusion of cell membranes. Tight junctions are found wherever epithelial tissue exists in the body, including the digestive tract, skin, blood vessels, and organs. They play an important role in conditions like leaky gut by regulating what passes from the intestines into the bloodstream.
Cellular structure and function
- In the 1600s, van Leeuwenhoek and Hooke used early microscopes to observe cells, the basic unit of life, for the first time in pond water and plant tissues.
- In the 1830s-1850s, scientists including Schleiden, Schwann, and Virchow developed the cell theory, concluding that all organisms are composed of cells, the cell is the basic unit of structure and organization, and all cells come from pre-existing cells.
- The development of electron microscopes in the 1930s allowed observation of intracellular structures and organelles and revealed two basic cell types: prokaryotic cells without membrane-bound organelles and eukaryotic cells with membrane-bound
Anju ppt
The document lists and provides brief descriptions of the major organelles in a cell:
- The cell membrane contains the organelles and is selectively permeable.
- The cytoplasm holds the organelles and is a jelly-like substance.
- The nucleus contains the cell's DNA and controls the cell.
- Mitochondria produce and store energy for the cell.
- The endoplasmic reticulum conducts materials within the cell.
- Ribosomes are involved in protein synthesis.
- The centrosome and centrioles play a role in cell division.
- Lysosomes contain digestive enzymes.
- The Golgi complex collects cell secretions in vesicles.
Cell membranes m pr
Cell membranes are composed of a phospholipid bilayer with intrinsic and extrinsic proteins embedded. The phospholipid bilayer forms a partially permeable barrier through which selective transport of molecules can occur. Intrinsic proteins span the bilayer and facilitate both passive diffusion of small molecules down a concentration gradient, as well as active transport of molecules against a gradient using energy from ATP. Together, the fluid phospholipid bilayer and embedded transport proteins allow cells to control what enters and exits across the membrane.
Plant biochemistry: plant tissues
This slides gives the detailed information about the plant tissues: meristematic and permanent (both simple and complex plant tissues) that make up the plant.
Animal cell anatomy power point
The document discusses the basic anatomy of an animal cell. It describes the key organelles that make up the cell, including the cell membrane, nucleus, mitochondria, Golgi body, endoplasmic reticulum, lysosomes, and vacuoles. It explains the basic functions of these organelles, such as how the mitochondria produces energy, the Golgi body packages proteins, and the nucleus controls cell activities and contains DNA. The document also notes that while all cells have the same basic components, they can perform different functions and this allows for diversity within organisms.
Nscu 302 wk 2 3
The document discusses the cellular level of organization. It describes the key components of eukaryotic cells including the plasma membrane, nucleus, and cytoplasm. The plasma membrane separates the cell from its external environment and regulates the exchange of materials. It is made up of a phospholipid bilayer with embedded proteins that allow for selective permeability and transport. The nucleus contains the cell's DNA, and the cytoplasm contains organelles and cytosol.
Cell cell interactions
Plasmodesmata are cytoplasmic channels that connect plant cells and allow communication between them. They form during cell division around elements of the endoplasmic reticulum that become trapped in the cell wall. Plasmodesmata vary in structure and number, ranging from less than 1 to over 15 per square micrometer of cell wall. They function to transport molecules, nutrients, and signals between cells, facilitating intercellular communication and transport throughout plant tissues.
Eukaryotes
Eukaryotic cells are larger and more complex than prokaryotic cells, containing membrane-bound organelles and a nucleus. Key structures include a cell membrane and cytoplasm, as well as organelles like the endoplasmic reticulum, mitochondria, plastids, flagella, and cilia. Eukaryotic cells reproduce through both asexual and sexual means, with sexual reproduction involving meiosis to produce daughter cells with half the number of chromosomes.
transport across cell membranes
Facilitated diffusion is the passive transport of molecules across a cell membrane using carrier proteins. There are two main types of carrier proteins: carrier proteins that bind to specific molecules and undergo a conformational change to transport them across the membrane, and ion channels that have pores lined with charged groups to transport ions. Facilitated diffusion is saturated at high concentration differences because there are a limited number of carrier proteins.
What's hot (20)
Plant biochemistry: cell wall, structure and composition
Plant biochemistry: cell wall, structure and composition
Viewers also liked
Myosin II activation and actin re-organization regulate the mode of quantal e...
Chromaffin cells of the adrenal medulla are innervated by the sympathetic nervous system. Stimulation causes chromaffin cells to fire action potentials leading to the exocytosis of various classes of transmitters into the circulation. Low frequency electrical stimulation (action potentials delivered at 0.5 Hz) causes adrenal chromaffin cells to selectively release catecholamines through a kiss-and-run fusion event. Elevated electrical stimulation (action potentials at 15 Hz) evokes fusion pore dilation, full granule collapse and additional release of the neuropeptide-containing proteinacious granule core. Here we apply single-cell electrophysiological, electrochemical and fluorescence measurements to investigate the cellular mechanism for this shift in exocytic behavior. We show that at low frequency stimulation, a filamentous-actin cell cortex plays a key role in stabilizing the kiss-and-run fusion event. Increased stimulation disrupts the actin cortex, driving full granule collapse. We show pharmacological perturbation of the actin cortex supersedes stimulus frequency in controlling exocytic mode. Finally, we show that non-muscle myosin II activation contributes to the cytoskeleton-dependent control of the fusion event. Inhibition of myosin II or myosin light chain kinase under elevated stimulation frequencies inhibits fusion pore dilation and maintains the granule in a kiss and run mode of exocytosis. These results demonstrate an essential role for activity-evoked cytoskeletal re-arrangement and the action of myosin II in the regulation of catecholamine and neuropeptide exocytosis and represents an essential element of the sympathetic stress response.
Ch.5 active transport, endocytosis, and exocytosis By Hamdy Karim
The document discusses active transport, endocytosis, and exocytosis in cells. It explains that active transport uses energy to move materials against their concentration gradient using transport proteins. Endocytosis and exocytosis transport materials across membranes within vesicles - endocytosis transports materials into the cell within vesicles formed by infoldings of the membrane, while exocytosis releases materials from vesicles fusing with the outer membrane. The document provides examples of these processes in cells.
Types of endocytosis
Phagocytosis is when solid material is engulfed by a cell in a vesicle, such as when white blood cells remove bacteria and cell debris or amoebas engulf food. Pinocytosis is the process by which liquid material is taken into a cell through "cell drinking", such as a human egg cell taking up nutrients from surrounding cells. Both are forms of cellular ingestion but phagocytosis involves solid material while pinocytosis involves liquid material.
Vesicular transport
This document discusses cellular vesicles and membrane trafficking. It defines vesicles as membranous sacs that store and transport cellular products or waste. There are three main types of vesicles: secretory vesicles, transport vesicles, and storage vesicles. The document then discusses the mechanisms and proteins involved in vesicle formation, transport, and fusion, including endocytosis, exocytosis, clathrin, adaptor proteins, dynamin, Rab GTPases, and SNARE proteins. It also mentions some diseases related to problems in vesicle trafficking like botulism, tetanus, and familial hypercholesterolemia.
Transfersome
A Transfersome carrier is an artificial vesicle or a cell engaged in exocytosis, and thus suitable for controlled and, potentially targeted drug delivery,.
Endocytosis
The document summarizes the processes of endocytosis and exocytosis. It defines endocytosis as the process by which cells move material into the cell from the outside environment through vesicles. Exocytosis is defined as the opposite process, where material is moved out of the cell. There are three main types of endocytosis: receptor-mediated endocytosis, phagocytosis, and pinocytosis. Receptor-mediated endocytosis involves specific molecules binding to cell surface receptors and being ingested. Phagocytosis refers to the ingestion of solid particles over 0.5um in size. Pinocytosis involves the ingestion of small particles or dissolved materials to form vesicles within the cell.
Vesicle transport
Endocytosis is the process by which cells absorb materials from outside by engulfing them with their plasma membrane to form vesicles inside the cell. There are three main types of endocytosis: pinocytosis, which involves small solutes; phagocytosis, where larger particles are engulfed; and receptor-mediated endocytosis, where specific molecules bind to receptors and are brought into the cell. Phagocytosis involves larger particles being engulfed by the membrane forming a vesicle, which then fuses with a lysosome containing digestive enzymes to break down the particles inside the cell.
IB Biology 1.4 Slides: Cell Transport
Membranes control the movement of substances into and out of cells through passive and active transport mechanisms. Materials enter cells through endocytosis and leave through exocytosis. Vesicles help move substances within cells by budding off membranes and fusing with other membranes. Membranes selectively control diffusion of substances in and out of cells down concentration gradients through passive transport like simple diffusion, facilitated diffusion, and osmosis. Active transport requires energy and pumps substances against concentration gradients using proteins like sodium-potassium pumps in neurons. Membrane transport mechanisms precisely regulate the internal composition of cells.
Exocytosis and endocytosis
explain the types and the formation of vesicles.for downloading the presentation ,more presentations , infographics and blogs visit :
https://studyscienceblog.wordpress.com
Exocytosis and Endocytosis {Best one}
Types of transport include passive transport which does not require energy and active transport which uses protein pumps and channels to move substances across membranes. There are several types of active transport including bulk transport, endocytosis, and exocytosis. Endocytosis brings material into the cell through phagocytosis, pinocytosis, or receptor-mediated endocytosis while exocytosis expels material from the cell. Phagocytosis engulfs solid particles, pinocytosis brings in extracellular fluid through membrane invagination, and receptor-mediated endocytosis specifically uptakes substances bound to cell surface receptors. Both endocytosis and exocytosis use vesicle formation and membrane fusion but transport materials in opposite directions with endocytosis importing and exocytosis exporting.
liposomes and niosomes
Liposomes are spherical vesicles made of concentric phospholipid bilayers. They were first produced in 1961 and can range in size from 20 nm to several micrometers. Liposomes provide advantages like selective targeting to tumors, increased drug efficacy, and reduced toxicity, but also have disadvantages such as high production costs and drug leakage. Common methods for preparing liposomes include film hydration, ethanol injection, and detergent removal.
Mechanisms of transport across the cell membrane
This document discusses various mechanisms of transport across cell membranes, including:
- Passive transport mechanisms like simple diffusion, facilitated diffusion, and osmosis which do not require energy.
- Active transport mechanisms like primary and secondary active transport which move substances against their concentration gradient using cellular energy.
- Bulk transport mechanisms like filtration and vesicular transport which move larger particles and fluids across membranes.
TRANSPORT ACROSS CELL MEMBRANE
This document discusses cell membrane transport mechanisms. It begins by outlining the key topics to be covered, including the importance of cell membranes, types of transport mechanisms, and details on active and primary/secondary active transport. It then provides information on the structure of the cell membrane, including the lipid bilayer and membrane proteins. Various types of membrane transport mechanisms are defined, such as simple diffusion, facilitated diffusion, osmosis, and vesicular transport processes like endocytosis and exocytosis. Factors influencing diffusion rates and osmotic concepts like tonicity are also examined.
Types of movement across the cell membrane
There are three main types of movement across cell membranes: passive transport, which does not require energy and includes diffusion, osmosis, and facilitated diffusion; endocytosis and exocytosis, which allow materials to enter and exit cells through membrane vesicles; and active transport, which uses energy to transport molecules against their concentration gradient using carrier proteins. Whether water moves into or out of a cell depends on if the external solution is isotonic, hypotonic, or hypertonic relative to the cell.
Wrist palmar medical images for power point
This document provides an image of the palmar view of the wrist with labels identifying the various ligaments. These include the long and short radiolunate ligaments, ulnolunate ligament, ulnocapitate ligament, ulnotriquetral ligament, triquetrohamate ligament, triquetrocapitate ligament, lunotriqueral ligament, capitohamate ligament, scaphotrapezoidtrapezoid ligament, scaphocapitate ligament, trapeziotrapezoid ligament, flexor retinaculum, space of Poirier, and radioscaphocapitate ligament. Instructions are provided on how to add text,
Viewers also liked (15)
Myosin II activation and actin re-organization regulate the mode of quantal e...
Myosin II activation and actin re-organization regulate the mode of quantal e...
Ch.5 active transport, endocytosis, and exocytosis By Hamdy Karim
Ch.5 active transport, endocytosis, and exocytosis By Hamdy Karim
More from Amo Oliverio
liters to quarts conversion.pptx
This document provides conversion steps to change 42 liters to quarts. It states that 1 liter equals 33.81 fluid ounces, and there is no direct conversion between liters and quarts. It then shows that fluid ounces can be converted to pints, which can then be converted to quarts, allowing liters to be fully converted to the required unit of quarts.
GSC109 01 lecture outline
This document provides an overview of concepts related to motion and equilibrium from a physics textbook. It discusses Aristotle's early ideas about motion, Galileo's concept of inertia based on experiments showing objects in motion tend to stay in motion, and mass as a measure of an object's inertia. The document also covers net force, equilibrium, types of forces including friction and support forces, and concepts such as speed, velocity, and acceleration.
Chapter 17 blood q and q part 2
Anemia is a condition where the blood has a low ability to carry oxygen due to having too few red blood cells or hemoglobin. There are several types of anemia including iron-deficiency anemia, pernicious anemia, and sickle-cell anemia. Sickle-cell anemia is caused by an abnormal hemoglobin that causes red blood cells to become sickle-shaped, rupture easily, and block blood vessels. Blood doping artificially increases red blood cell counts and oxygen delivery but risks health issues. Leukocytes, or white blood cells, are the only complete cells in blood and include granulocytes like neutrophils, lymphocytes, monocytes, and others that fight infection and disease
Chapter 17 blood q and a part 1
The document summarizes key information about the components and functions of blood. It describes the three main components of blood as plasma, buffy coat, and erythrocytes. Plasma is the liquid portion that transports cells, nutrients, waste, etc. The buffy coat contains white blood cells and platelets. Erythrocytes are red blood cells that contain hemoglobin and transport oxygen and carbon dioxide. The functions of blood include distribution of materials, regulation of pH and temperature, and protection from infection and blood loss. Anemias occur when the blood has a low oxygen-carrying capacity due to issues like blood loss, lack of nutrients, or bone marrow disorders.
Chapter18
The document discusses the origins and early evolution of life on Earth. It describes some of the conditions on the early Earth and how simple organic compounds may have formed through atmospheric reactions, hydrothermal vents, or delivery by meteorites. It also discusses experiments that demonstrate how self-assembly of these molecules could have led to the first protocells and metabolism, as well as the possible emergence of RNA prior to DNA as the genetic material. The document then covers the divergence of bacteria and archaea, the rise of oxygen due to cyanobacteria, the appearance of eukaryotes, and current hypotheses about the endosymbiotic origins of organelles like mitochondria and chloroplasts.
8.6
Common joint injuries include cartilage tears, ligament sprains, and dislocations. Cartilage tears can cause locking or binding of the joint and are repaired through arthroscopic surgery. Ligament sprains occur when ligaments are stretched or torn, and require immobilization or surgical repair. Dislocations involve bones being forced out of alignment, accompanied by sprains and inflammation.
Inflammatory and degenerative joint conditions include bursitis, tendonitis, and various forms of arthritis. Bursitis and tendonitis involve inflammation of the bursa and tendon sheaths, usually from overuse. Arthritis encompasses over 100 diseases that damage joints, with osteoarthritis being the most common and involving breakdown of cartilage
8.4
Synovial joints have six general features including articular cartilage, a joint cavity, an articular capsule, synovial fluid, ligaments, and blood vessels. They allow movements like gliding, angular movements like flexion and extension, and rotation. Stability is influenced by factors like bone shape, ligaments, and muscle tone. There are six types of synovial joints classified by their shape and motion: plane, hinge, pivot, condylar, saddle, and ball-and-socket.
8.3
Cartilaginous joints unite bones through cartilage and have little movement. There are two types: synchondroses unite bones through a hyaline cartilage plate and are immovable, examples include epiphyseal plates in children; symphyses unite bones through fibrocartilage and allow some movement, examples include intervertebral discs and the pubic symphysis.
8.2
Fibrous joints are immovable joints joined by dense connective tissue fibers. There are three types: sutures which are rigid interlocking skull joints that allow growth; syndesmoses where bones are connected by ligaments of varying fiber length, allowing some movement; and gomphoses which are peg-in-socket joints like teeth in sockets held by the periodontal ligament.
8.1
Joints are where two or more bones meet, giving mobility to the skeleton while holding it together. There are two main classifications of joints - structural and functional. Structurally, joints are classified into three types based on the material binding them and whether a cavity is present: fibrous, cartilaginous, and synovial. The document will focus on the clearer structural classifications.
8.5 no vids
The document describes several synovial joints: the knee, shoulder, elbow, and hip. The knee is the largest and most complex joint, consisting of the femoropatellar joint and medial/lateral tibiofemoral joints. The shoulder has the most freedom of movement but lacks stability. The elbow acts as a hinge joint for flexion/extension. The hip is a ball-and-socket joint with the spherical femoral head fitting into the deep acetabulum.
8.5
The document describes several synovial joints, focusing on the knee, shoulder, and elbow joints. It provides details on:
- The knee joint is the largest and most complex joint, consisting of the femoropatellar joint and medial/lateral tibiofemoral joints. It allows flexion/extension and some rotation. Cruciate ligaments and menisci help stabilize the joint.
- The shoulder joint is the most freely moving but least stable joint, with a large humeral head fitting into a shallow glenoid cavity. Rotator cuff muscles and the long head of the biceps brachii provide stability.
- The elbow joint is a hinge joint formed by the tro
8.4
Synovial joints have six general features including articular cartilage, a joint cavity, an articular capsule, synovial fluid, ligaments, and blood vessels. They allow movements like gliding, angular movements like flexion and extension, and rotation. Stability is influenced by factors like bone shape, ligaments, and muscle tone. There are six types of synovial joints classified by their shape and motion: plane, hinge, pivot, condylar, saddle, and ball-and-socket.
6.7
Fractures occur when bones break. There are three classifications of fractures based on the position of bone ends, completeness of the break, and whether the skin is penetrated. Treatment involves realigning the broken bone ends through closed or open reduction and immobilizing the bone to heal. Bone repair occurs in four stages - hematoma formation, fibrocartilaginous callus formation, bony callus formation, and bone remodeling to reconstruct the original bone structure.
6.6
Bone remodeling occurs continuously as old bone is removed by osteoclasts and new bone is deposited by osteoblasts. Approximately 5-7% of bone mass is remodeled each week, with spongy bone being replaced about every 3-4 years and compact bone every 10 years. Bone remodeling is regulated by two control loops - hormonal control of blood calcium levels including PTH and calcitonin, and response to mechanical stress based on Wolff's law where bones remodel in response to stresses placed upon them.
6.5
Bone development occurs through two main processes: endochondral ossification and intramembranous ossification. Endochondral ossification forms bones below the skull through replacement of cartilage models with bone tissue in a multi-step process beginning in the second month of development. Intramembranous ossification forms some flat bones of the skull through the direct development of bone within fibrous membranes in mesenchymal tissue. Postnatal bone growth continues through adolescence via growth at the epiphyseal plates of long bones.
6.4
Bones have a complex structure at multiple levels:
- Gross level includes compact bone on the outside and spongy bone on the inside, with membranes like the periosteum covering bones. Long bones have a shaft and ends.
- Microscopic level shows bone is made of osteons containing concentric lamellae, with canals containing blood vessels. Bone cells like osteoblasts and osteoclasts are involved in formation and breakdown.
- Chemical level consists of collagen fibers mineralized with calcium salts to give bone its strength.
6.8
The document discusses three major bone diseases: osteomalacia/rickets caused by vitamin D deficiency which results in soft, weak bones; osteoporosis where bone resorption exceeds formation leading to loss of bone mass and increased fracture risk, particularly in postmenopausal women; and Paget's disease where bone formation and resorption are excessive and disorganized. It also covers age-related changes to bone such as increased formation in childhood balancing resorption in adulthood, and declining bone density with age beginning in the fourth decade of life.
6.3
The document summarizes the classification of bones in the human skeleton. It is divided into two parts:
1) The axial skeleton includes the skull, vertebral column, and rib cage. The appendicular skeleton includes the bones of the upper and lower limbs attached to the axial skeleton by girdles.
2) Bones are also classified by their shape into four categories: long bones are longer than wide and found in the limbs, short bones are cube-shaped in the wrist and ankle, flat bones are thin and curved like those in the skull, and irregular bones have complicated shapes like the vertebrae and hip bones.
6.2
Bones have seven key functions: to provide support for the body and soft organs, protect vital organs like the brain and spinal cord, serve as levers for muscle movement, store minerals and growth factors like calcium and phosphorus, allow for blood cell formation in red bone marrow, store fat for energy, and help regulate hormones through the production of osteocalcin.
More from Amo Oliverio (20)
Recently uploaded
Chapter wise All Notes of First year Basic Civil Engineering.pptx
Chapter wise All Notes of First year Basic Civil Engineering
Syllabus
Chapter-1
Introduction to objective, scope and outcome the subject
Chapter 2
Introduction: Scope and Specialization of Civil Engineering, Role of civil Engineer in Society, Impact of infrastructural development on economy of country.
Chapter 3
Surveying: Object Principles & Types of Surveying; Site Plans, Plans & Maps; Scales & Unit of different Measurements.
Linear Measurements: Instruments used. Linear Measurement by Tape, Ranging out Survey Lines and overcoming Obstructions; Measurements on sloping ground; Tape corrections, conventional symbols. Angular Measurements: Instruments used; Introduction to Compass Surveying, Bearings and Longitude & Latitude of a Line, Introduction to total station.
Levelling: Instrument used Object of levelling, Methods of levelling in brief, and Contour maps.
Chapter 4
Buildings: Selection of site for Buildings, Layout of Building Plan, Types of buildings, Plinth area, carpet area, floor space index, Introduction to building byelaws, concept of sun light & ventilation. Components of Buildings & their functions, Basic concept of R.C.C., Introduction to types of foundation
Chapter 5
Transportation: Introduction to Transportation Engineering; Traffic and Road Safety: Types and Characteristics of Various Modes of Transportation; Various Road Traffic Signs, Causes of Accidents and Road Safety Measures.
Chapter 6
Environmental Engineering: Environmental Pollution, Environmental Acts and Regulations, Functional Concepts of Ecology, Basics of Species, Biodiversity, Ecosystem, Hydrological Cycle; Chemical Cycles: Carbon, Nitrogen & Phosphorus; Energy Flow in Ecosystems.
Water Pollution: Water Quality standards, Introduction to Treatment & Disposal of Waste Water. Reuse and Saving of Water, Rain Water Harvesting. Solid Waste Management: Classification of Solid Waste, Collection, Transportation and Disposal of Solid. Recycling of Solid Waste: Energy Recovery, Sanitary Landfill, On-Site Sanitation. Air & Noise Pollution: Primary and Secondary air pollutants, Harmful effects of Air Pollution, Control of Air Pollution. . Noise Pollution Harmful Effects of noise pollution, control of noise pollution, Global warming & Climate Change, Ozone depletion, Greenhouse effect
Text Books:
1. Palancharmy, Basic Civil Engineering, McGraw Hill publishers.
2. Satheesh Gopi, Basic Civil Engineering, Pearson Publishers.
3. Ketki Rangwala Dalal, Essentials of Civil Engineering, Charotar Publishing House.
4. BCP, Surveying volume 1
Pengantar Penggunaan Flutter - Dart programming language1.pptx
Pengantar Penggunaan Flutter - Dart programming language1.pptx
How to Create a More Engaging and Human Online Learning Experience
How to Create a More Engaging and Human Online Learning Experience Wahiba Chair Training & Consulting
Wahiba Chair's Talk at the 2024 Learning Ideas Conference. PCOS corelations and management through Ayurveda.
This presentation includes basic of PCOS their pathology and treatment and also Ayurveda correlation of PCOS and Ayurvedic line of treatment mentioned in classics.
Walmart Business+ and Spark Good for Nonprofits.pdf
"Learn about all the ways Walmart supports nonprofit organizations.
You will hear from Liz Willett, the Head of Nonprofits, and hear about what Walmart is doing to help nonprofits, including Walmart Business and Spark Good. Walmart Business+ is a new offer for nonprofits that offers discounts and also streamlines nonprofits order and expense tracking, saving time and money.
The webinar may also give some examples on how nonprofits can best leverage Walmart Business+.
The event will cover the following::
Walmart Business + (https://business.walmart.com/plus) is a new shopping experience for nonprofits, schools, and local business customers that connects an exclusive online shopping experience to stores. Benefits include free delivery and shipping, a 'Spend Analytics” feature, special discounts, deals and tax-exempt shopping.
Special TechSoup offer for a free 180 days membership, and up to $150 in discounts on eligible orders.
Spark Good (walmart.com/sparkgood) is a charitable platform that enables nonprofits to receive donations directly from customers and associates.
Answers about how you can do more with Walmart!"
Beyond Degrees - Empowering the Workforce in the Context of Skills-First.pptx
Iván Bornacelly, Policy Analyst at the OECD Centre for Skills, OECD, presents at the webinar 'Tackling job market gaps with a skills-first approach' on 12 June 2024
How to deliver Powerpoint Presentations.pptx
"How to make and deliver dynamic presentations by making it more interactive to captivate your audience attention"
BBR 2024 Summer Sessions Interview Training
Qualitative research interview training by Professor Katrina Pritchard and Dr Helen Williams
BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...
BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...Nguyen Thanh Tu Collection
https://app.box.com/s/y977uz6bpd3af4qsebv7r9b7s21935vdBÀI TẬP DẠY THÊM TIẾNG ANH LỚP 7 CẢ NĂM FRIENDS PLUS SÁCH CHÂN TRỜI SÁNG TẠO ...
BÀI TẬP DẠY THÊM TIẾNG ANH LỚP 7 CẢ NĂM FRIENDS PLUS SÁCH CHÂN TRỜI SÁNG TẠO ...Nguyen Thanh Tu Collection
https://app.box.com/s/qhtvq32h4ybf9t49ku85x0n3xl4jhr15Hindi varnamala | hindi alphabet PPT.pdf
हिंदी वर्णमाला पीपीटी, hindi alphabet PPT presentation, hindi varnamala PPT, Hindi Varnamala pdf, हिंदी स्वर, हिंदी व्यंजन, sikhiye hindi varnmala, dr. mulla adam ali, hindi language and literature, hindi alphabet with drawing, hindi alphabet pdf, hindi varnamala for childrens, hindi language, hindi varnamala practice for kids, https://www.drmullaadamali.com
The History of Stoke Newington Street Names
Presented at the Stoke Newington Literary Festival on 9th June 2024
www.StokeNewingtonHistory.com
Your Skill Boost Masterclass: Strategies for Effective Upskilling
Your Skill Boost Masterclass: Strategies for Effective UpskillingExcellence Foundation for South Sudan
Strategies for Effective Upskilling is a presentation by Chinwendu Peace in a Your Skill Boost Masterclass organisation by the Excellence Foundation for South Sudan on 08th and 09th June 2024 from 1 PM to 3 PM on each day.BÀI TẬP BỔ TRỢ TIẾNG ANH LỚP 9 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2024-2025 - ...
BÀI TẬP BỔ TRỢ TIẾNG ANH LỚP 9 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2024-2025 - ...Nguyen Thanh Tu Collection
https://app.box.com/s/tacvl9ekroe9hqupdnjruiypvm9rdaneRecently uploaded (20)
Chapter wise All Notes of First year Basic Civil Engineering.pptx
Chapter wise All Notes of First year Basic Civil Engineering.pptx
Pengantar Penggunaan Flutter - Dart programming language1.pptx
Pengantar Penggunaan Flutter - Dart programming language1.pptx
spot a liar (Haiqa 146).pptx Technical writhing and presentation skills
spot a liar (Haiqa 146).pptx Technical writhing and presentation skills
How to Create a More Engaging and Human Online Learning Experience
How to Create a More Engaging and Human Online Learning Experience
NEWSPAPERS - QUESTION 1 - REVISION POWERPOINT.pptx
NEWSPAPERS - QUESTION 1 - REVISION POWERPOINT.pptx
Walmart Business+ and Spark Good for Nonprofits.pdf
Walmart Business+ and Spark Good for Nonprofits.pdf
Beyond Degrees - Empowering the Workforce in the Context of Skills-First.pptx
Beyond Degrees - Empowering the Workforce in the Context of Skills-First.pptx
Film vocab for eal 3 students: Australia the movie
Film vocab for eal 3 students: Australia the movie
BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...
BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...
BÀI TẬP DẠY THÊM TIẾNG ANH LỚP 7 CẢ NĂM FRIENDS PLUS SÁCH CHÂN TRỜI SÁNG TẠO ...
BÀI TẬP DẠY THÊM TIẾNG ANH LỚP 7 CẢ NĂM FRIENDS PLUS SÁCH CHÂN TRỜI SÁNG TẠO ...
Your Skill Boost Masterclass: Strategies for Effective Upskilling
Your Skill Boost Masterclass: Strategies for Effective Upskilling
BÀI TẬP BỔ TRỢ TIẾNG ANH LỚP 9 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2024-2025 - ...
BÀI TẬP BỔ TRỢ TIẾNG ANH LỚP 9 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2024-2025 - ...
Ch 5 5.8
- 1. © Cengage Learning 2015 5.8 How Do Large Particles/Bulk Substances Move Across Membranes? • Vesicle movement – Exocytosis: cell expels a vesicle’s contents to extracellular fluid – Endocytosis: cell takes in a small amount of extracellular fluid (and its contents) by the ballooning inward of the plasma membrane – Phagocytosis: “Cell eating”; an endocytic pathway by which a cell engulfs particles such as microbes or cellular debris
- 2. © Cengage Learning 2015 Membrane Trafficking • Membrane proteins and lipids are made in the ER and move to the Golgi bodies for final modification – “Finalized” vesicles containing proteins and lipids move to and fuse with the plasma membrane • Exocytosis and endocytosis continually replace and withdraw membrane patches