CELL STRUCTURE & FUNCTION.pptx
•Download as PPTX, PDF•
0 likes•2 views
This document provides an introduction to cell biology. It discusses the objectives of familiarizing students with the early history of cell biology and the basic properties of cells. It describes how biology is divided into organismic biology, which focuses on whole organisms, and molecular and cellular biology, which studies cell interactions and functions. The key developments in cell theory are outlined, including the earliest observations of cells by Hooke, Leeuwenhoek, Schleiden, and Virchow. The document defines a cell and provides examples. It distinguishes between the two main types of cells - prokaryotic and eukaryotic - describing their characteristics and differences.
Report
Share
Report
Share
Recommended
1. Cell Biology.pptx
1) Cell biology is the study of cells, which are the fundamental unit of structure and function in living things. Key discoveries in cell biology include the first observation of cells in the 1600s and the formulation of the cell theory in the 1830s-1840s.
2) Cells come in two main types - prokaryotic cells, which are simpler bacterial cells, and eukaryotic cells, which are more complex and include plant and animal cells. Eukaryotic cells have membrane-bound organelles and a nucleus while prokaryotic cells do not.
3) Stem cells have potential applications in cell replacement therapy and regenerative medicine. Embryonic stem cells are plurip
Biology theory 1/Health Sciences
This document provides an introduction to biology, including definitions and key concepts. It discusses biology as the study of living things and describes its main branches as zoology, botany, and microbiology. The importance of biology is explained as helping to understand body functions and use natural resources sustainably. The basic unit of life, the cell, is introduced, along with its history of discovery. The modern cell theory states that all organisms are composed of cells, cells are the basic units of structure and function, and new cells arise from existing cells. The main differences between prokaryotic and eukaryotic cells are outlined.
The cell theory
This document outlines the key events in the discovery of cells and the development of the cell theory. It describes Robert Hooke observing cells in 1665, van Leeuwenhoek creating powerful microscopes to view cells in 1673, Robert Brown discovering the nucleus in 1827-33, Matthias Schleiden concluding that plants are made of cells in 1838, Theodor Schwann concluding that animals are made of cells in 1839, and Rudolph Virchow formulating the cell theory that all cells come from pre-existing cells in 1855. The cell theory states that all living things are composed of cells, cells are the basic functional units of life, and new cells are produced from existing cells.
CELL THEORY.pptx
The document discusses the history and development of the cell theory, outlining key figures like Robert Hooke, Anton van Leeuwenhoek, and Rudolf Virchow and their contributions to early microscopy and the realization that all living things are made of cells. It also explains the main postulates of the classical cell theory and provides a modern interpretation, noting that cells contain genetic material, their activity dictates the organism, and cells of the same species have identical genetic makeup. The objectives are to describe the cell theory postulates and explain the characteristics that define all living organisms.
Chapter 1 cell Bio
This document provides an introduction to cell biology. It discusses key topics like what is a cell, the cell theory, differences between prokaryotic and eukaryotic cells, cell size and structure, and early discoveries of cells by scientists like Hooke, Leeuwenhoek, Schleiden, and Schwann. It also outlines course policies and provides an overview of topics to be covered, including cell organelles, cell types, microscopy, and cell evolution.
Cell and Molecular Biology: Definitions theory and basics, History and Applic...
This document provides an overview of cell and molecular biology. It defines cells as the basic structural and functional units of life and describes their components and characteristics. The development of cell theory by Hooke, Leeuwenhoek, Schleiden, Schwann, and Virchow is summarized. Molecular biology is introduced as the study of gene structure and function at the molecular level, involving DNA, RNA, proteins, and their interactions. Common techniques used in molecular biology like PCR and DNA sequencing are listed.
Biology lecture 1 and 2_e6c1908877387bfcb9829159160b7c89.pptx
This document outlines the content of a biology course, including introductions to key topics like cell biology, chemicals of life, and ecology. The course covers cell structure and organelles, characteristics of living things, and levels of biological organization. Cell structure is defined, including the cell membrane, cell wall, nucleus, cytoplasm, and organelles. The cell theory is introduced along with early observations of cells by Hooke, van Leeuwenhoek, Schleiden, and Schwann that led to its development.
Recommended
1. Cell Biology.pptx
1) Cell biology is the study of cells, which are the fundamental unit of structure and function in living things. Key discoveries in cell biology include the first observation of cells in the 1600s and the formulation of the cell theory in the 1830s-1840s.
2) Cells come in two main types - prokaryotic cells, which are simpler bacterial cells, and eukaryotic cells, which are more complex and include plant and animal cells. Eukaryotic cells have membrane-bound organelles and a nucleus while prokaryotic cells do not.
3) Stem cells have potential applications in cell replacement therapy and regenerative medicine. Embryonic stem cells are plurip
Biology theory 1/Health Sciences
This document provides an introduction to biology, including definitions and key concepts. It discusses biology as the study of living things and describes its main branches as zoology, botany, and microbiology. The importance of biology is explained as helping to understand body functions and use natural resources sustainably. The basic unit of life, the cell, is introduced, along with its history of discovery. The modern cell theory states that all organisms are composed of cells, cells are the basic units of structure and function, and new cells arise from existing cells. The main differences between prokaryotic and eukaryotic cells are outlined.
The cell theory
This document outlines the key events in the discovery of cells and the development of the cell theory. It describes Robert Hooke observing cells in 1665, van Leeuwenhoek creating powerful microscopes to view cells in 1673, Robert Brown discovering the nucleus in 1827-33, Matthias Schleiden concluding that plants are made of cells in 1838, Theodor Schwann concluding that animals are made of cells in 1839, and Rudolph Virchow formulating the cell theory that all cells come from pre-existing cells in 1855. The cell theory states that all living things are composed of cells, cells are the basic functional units of life, and new cells are produced from existing cells.
CELL THEORY.pptx
The document discusses the history and development of the cell theory, outlining key figures like Robert Hooke, Anton van Leeuwenhoek, and Rudolf Virchow and their contributions to early microscopy and the realization that all living things are made of cells. It also explains the main postulates of the classical cell theory and provides a modern interpretation, noting that cells contain genetic material, their activity dictates the organism, and cells of the same species have identical genetic makeup. The objectives are to describe the cell theory postulates and explain the characteristics that define all living organisms.
Chapter 1 cell Bio
This document provides an introduction to cell biology. It discusses key topics like what is a cell, the cell theory, differences between prokaryotic and eukaryotic cells, cell size and structure, and early discoveries of cells by scientists like Hooke, Leeuwenhoek, Schleiden, and Schwann. It also outlines course policies and provides an overview of topics to be covered, including cell organelles, cell types, microscopy, and cell evolution.
Cell and Molecular Biology: Definitions theory and basics, History and Applic...
This document provides an overview of cell and molecular biology. It defines cells as the basic structural and functional units of life and describes their components and characteristics. The development of cell theory by Hooke, Leeuwenhoek, Schleiden, Schwann, and Virchow is summarized. Molecular biology is introduced as the study of gene structure and function at the molecular level, involving DNA, RNA, proteins, and their interactions. Common techniques used in molecular biology like PCR and DNA sequencing are listed.
Biology lecture 1 and 2_e6c1908877387bfcb9829159160b7c89.pptx
This document outlines the content of a biology course, including introductions to key topics like cell biology, chemicals of life, and ecology. The course covers cell structure and organelles, characteristics of living things, and levels of biological organization. Cell structure is defined, including the cell membrane, cell wall, nucleus, cytoplasm, and organelles. The cell theory is introduced along with early observations of cells by Hooke, van Leeuwenhoek, Schleiden, and Schwann that led to its development.
Cell theory By KK Sahu Sir
INTRODUCTION TO CELLS
INTRODUCTION TO CELL THEORY
HISTORY
FORMULATION OF CELL THEORY
CLASSICAL CELL THEORY
DRAWBACKS OF CLASSICAL THEORY
MORDEN CELL THEORY
EXCEPTION OF CELL THEORY
SIGNIFICANCE OF CELL THEORY
HOW HAS THE CELL THEORY BEEN USED
CONCLUSION
cellandcelltheory-190324140633.pdf
The document discusses cell theory and the history of cell discovery. It explains that Robert Hooke first observed cells in 1665 using a microscope. Anton van Leeuwenhoek later observed single-celled organisms. In the 1830s-1840s, scientists including Matthias Schleiden, Theodor Schwann, and Rudolf Virchow developed cell theory, which states that all organisms are composed of cells, cells are the basic unit of life, and new cells are produced from existing cells. The document also describes key differences between prokaryotic and eukaryotic cells.
Cell and cell theory
The document discusses cell theory and the history of cell discovery. It explains that Robert Hooke first observed cells in 1665 using a microscope. Anton van Leeuwenhoek later discovered single-celled organisms. In the 1830s-1840s, scientists including Matthias Schleiden, Theodor Schwann, and Rudolf Virchow developed cell theory, which states that all organisms are composed of cells, cells are the basic unit of life, and new cells are produced from existing cells. The document also describes key differences between prokaryotic and eukaryotic cells.
cell theory.pptx
Cell theory states that all living things are made of cells, cells are the basic unit of structure and function, and all cells come from pre-existing cells. Key contributors included Robert Hooke, who first observed cells under a microscope in 1665, Matthias Schleiden who concluded that plants are made of cells in 1838, and Theodore Schwann who found that animals are also made of cells in 1839. They combined with Rudolf Virchow to develop the three tenets of cell theory: 1) all organisms are composed of cells, 2) the cell is the basic functional unit, and 3) all cells come from pre-existing cells. Modern interpretations retain these concepts and also recognize cells contain DNA and RNA and
Life Is Cellular
Cells are the basic structural and functional units of life. In the 17th-18th centuries, advances in microscope technology allowed scientists like Hooke and van Leeuwenhoek to observe cells. In 1838, Schleiden and Schwann proposed the Cell Theory - that all living things are composed of cells, cells are the basic unit of structure and function, and new cells are produced from existing cells. The Cell Theory was a major unifying concept in biology and changed views of life by introducing a more materialistic, reductionist perspective.
Cell the unit of life class 11 Biology notes or study material pdf download
Cell the unit of life class 11 Biology notes or study material pdf downloadVivekanand Anglo Vedic Academy
In the realm of biology, understanding the cell is akin to unlocking the secrets of life itself. The Class 11 Biology curriculum introduces students to the fascinating world of cells, encapsulating the intricate processes that sustain living organisms. The chapter aptly titled "Cell: The Unit of Life" serves as a foundational cornerstone, laying the groundwork for a comprehensive understanding of biology and the complexity of life.Chapter1 themes
1. The document discusses the key themes of biological organization, from molecules to cells to organisms and ecosystems. It explains that biological systems exhibit hierarchical organization, with emergent properties at each new level. Cells are the basic unit of structure and function in living things. DNA encodes the instructions that direct cellular functions and enable inheritance.
2. Structure and function are correlated across all levels of biological organization. Organisms exist as open systems that interact continuously with their environments. Regulatory mechanisms like feedback loops help maintain stability in living systems. Diversity and unity are both evident across the tree of life.
3. Evolution by natural selection is the core theme of biology, as it explains the unity and diversity of life on Earth through
1 chapter themes
1. Biology is organized into hierarchical levels from molecules to ecosystems. Novel properties emerge at each level through interactions between components.
2. Cells are the basic units of structure and function in living things. DNA contains the genetic instructions that are passed from parents to offspring and ensure the continuity of life.
3. Structure and function are correlated at all levels of biological organization, from molecules to ecosystems. Organisms exist as open systems that interact continuously with their environments.
All about cells
All living things are composed of cells, which are the basic unit of structure and function. Key scientists like Hooke, van Leeuwenhoek, Brown, Schwann, Schleiden, and Virchow made important discoveries about cells between 1665-1858. These included the first observations of cells under microscopes and establishing that all cells come from existing cells through division. The cell theory states that all organisms are made up of cells, cells are the basic functional units of life, and new cells are produced from existing cells. Cells carry out essential life functions like extracting energy, responding to stimuli, reproducing, and more.
Cell.pptx
Cellular biology is the study of cells, the basic units of life. There are two main types of cells - prokaryotic and eukaryotic. Prokaryotic cells like bacteria are simpler and lack organelles. Eukaryotic cells like plant and animal cells are more complex and contain organelles. The cell theory states that all living things are made of cells, cells are the basic unit of structure and function, and new cells are produced from existing cells. Organelles like mitochondria and chloroplasts may have originally been independent prokaryotic cells that were engulfed by early eukaryotic cells in a process called endosymbiosis.
Prokaryotes and eukaryotes
The document discusses the history and principles of cell theory. It describes how early microscopists like Hooke, Levenguk, and Purkinje made early observations of cells. In 1839, Schwann and Schleiden formulated the first principles of cell theory: (1) all living things are made of cells and (2) animal and plant cells have similar structure and composition. Later, Virchow added that cells only arise from preexisting cells. The modern cell theory includes four principles: (1) cells are the basic unit of life, (2) cells have similar composition and function, (3) new cells arise from existing cells, and (4) cell specialization leads to tissue and organ formation
Introduction to biology101
Biology is the study of living things to understand how they work. It examines the structure and function of organisms, their relationships with each other and the environment, how they grow and reproduce using DNA, hormones and signals. Major branches are botany, zoology, and microbiology. Biologists study topics like anatomy, physiology, ecology and more. Important scientists include Aristotle, Galen, Darwin, and Leeuwenhoek. The key properties of life are that organisms are made of cells with DNA, maintain order, regulate systems, respond to stimuli, process energy, develop and grow, reproduce, and evolve over time.
Class8 Science Chapter8 Cell
Cell Definition
What is a Cell?
Discovery of Cells
Who discovered cells?
Characteristics of Cells
Types of Cells
Prokaryotic Cells
Eukaryotic Cells
Cell Structure
Cell Membrane
Cell Wall
Cytoplasm
Nucleus
Cell Organelles
Functions of Cell
Cell Theory
Cell Theory.pptx
Cell theory states that living things are composed of one or more cells, that the cell is the basic unit of life, and that cells arise from existing cells.
The cell theory describes the basic properties of all cells.
The three scientists that contributed to the development of cell theory are Matthias Schleiden, Theodor Schwann, and Rudolf Virchow.
A component of the cell theory is that all living things are composed of one or more cells.
A component of the cell theory is that the cell is the basic unit of life.
A component of the cell theory is that all new cells arise from existing cells.
Harsh billore (cell the functional unit of life & cellular organisation)
cell definition, its theory,size and shape , different types of cell, basic difference between prokaryotic and eukaryotic cells; basic difference between unicellular and multicellular organism ; difference between animal and plant cells.
Cell.pptx
Cells are the basic unit of life. They range in size but all cells contain a nucleus and cytoplasm surrounded by a cell membrane. Within the cytoplasm are various organelles that carry out specific functions necessary for life. All organisms are made up of one or more cells that carry out functions like growth, transport of substances, and reproduction through cell division.
Chapter 1 cell biology intro cell
This document provides an introduction to the subject of cell biology. It outlines the learning objectives which are to understand basic cell biology concepts, how molecules cooperate to create living systems, and core cell biology principles. The document also describes the various topics that will be covered in the course, including cellular structures and functions, as well as expectations for students to gain essential knowledge and apply concepts in cell biology.
The cell-theory
The document summarizes the history and key concepts of cell theory. It describes how early microscopists like Hooke, van Leeuwenhoek, and Brown discovered key cell structures and components. In 1838, Schleiden concluded that plants are made of cells, and in 1839, Schwann concluded the same for animals, laying the foundations for cell theory. Virchow later established that cells only arise from pre-existing cells. The modern cell theory states that all living things are made of cells, cells are the basic unit of life, and new cells arise from existing cells. The document also discusses cell size, shape, types (prokaryotic vs. eukaryotic), and some of the
Cell for Yoga Net jrf by Dr Shivam Mishra.pptx
A cell is the structural and fundamental unit of life.
The study of cells from their basic structure to the functions of every cell organelle is called Cell Biology.
Robert Hooke was the first Biologist who discovered cells.
All organisms are made up of cells. They may be made up of a single cell (unicellular), or many cells (multicellular).
Mycoplasmas are the smallest known cells.
Cells are the building blocks of all living beings. They provide structure to the body and convert the nutrients taken from the food into energy.
Cells are complex and their components perform various functions in an organism. They are of different shapes and sizes, pretty much like the bricks of the buildings. Our body is made up of cells of different shapes and sizes.
Cells are the lowest level of organisation in every life form. From organism to organism, the count of cells may vary. Humans have more cells compared to that bacteria.
Cells comprise several cell organelles that perform specialised functions to carry out life processes. Every organelle has a specific structure. The hereditary material of the organisms is also present in the cells.
Cell theory
The cell is the basic unit of structure and life. All organisms are composed of one or more cells. Robert Hooke first observed cells in 1665 when examining cork under a microscope. The cell theory states that all organisms are made of similar basic units called cells, cells come only from pre-existing cells, and all living things have similar chemical components. The modern cell theory includes that organisms are made of cells, cells are the basic functional units of life, and cells reproduce through division of pre-existing cells.
share - Lions, tigers, AI and health misinformation, oh my!.pptx
• Pitfalls and pivots needed to use AI effectively in public health
• Evidence-based strategies to address health misinformation effectively
• Building trust with communities online and offline
• Equipping health professionals to address questions, concerns and health misinformation
• Assessing risk and mitigating harm from adverse health narratives in communities, health workforce and health system
More Related Content
Similar to CELL STRUCTURE & FUNCTION.pptx
Cell theory By KK Sahu Sir
INTRODUCTION TO CELLS
INTRODUCTION TO CELL THEORY
HISTORY
FORMULATION OF CELL THEORY
CLASSICAL CELL THEORY
DRAWBACKS OF CLASSICAL THEORY
MORDEN CELL THEORY
EXCEPTION OF CELL THEORY
SIGNIFICANCE OF CELL THEORY
HOW HAS THE CELL THEORY BEEN USED
CONCLUSION
cellandcelltheory-190324140633.pdf
The document discusses cell theory and the history of cell discovery. It explains that Robert Hooke first observed cells in 1665 using a microscope. Anton van Leeuwenhoek later observed single-celled organisms. In the 1830s-1840s, scientists including Matthias Schleiden, Theodor Schwann, and Rudolf Virchow developed cell theory, which states that all organisms are composed of cells, cells are the basic unit of life, and new cells are produced from existing cells. The document also describes key differences between prokaryotic and eukaryotic cells.
Cell and cell theory
The document discusses cell theory and the history of cell discovery. It explains that Robert Hooke first observed cells in 1665 using a microscope. Anton van Leeuwenhoek later discovered single-celled organisms. In the 1830s-1840s, scientists including Matthias Schleiden, Theodor Schwann, and Rudolf Virchow developed cell theory, which states that all organisms are composed of cells, cells are the basic unit of life, and new cells are produced from existing cells. The document also describes key differences between prokaryotic and eukaryotic cells.
cell theory.pptx
Cell theory states that all living things are made of cells, cells are the basic unit of structure and function, and all cells come from pre-existing cells. Key contributors included Robert Hooke, who first observed cells under a microscope in 1665, Matthias Schleiden who concluded that plants are made of cells in 1838, and Theodore Schwann who found that animals are also made of cells in 1839. They combined with Rudolf Virchow to develop the three tenets of cell theory: 1) all organisms are composed of cells, 2) the cell is the basic functional unit, and 3) all cells come from pre-existing cells. Modern interpretations retain these concepts and also recognize cells contain DNA and RNA and
Life Is Cellular
Cells are the basic structural and functional units of life. In the 17th-18th centuries, advances in microscope technology allowed scientists like Hooke and van Leeuwenhoek to observe cells. In 1838, Schleiden and Schwann proposed the Cell Theory - that all living things are composed of cells, cells are the basic unit of structure and function, and new cells are produced from existing cells. The Cell Theory was a major unifying concept in biology and changed views of life by introducing a more materialistic, reductionist perspective.
Cell the unit of life class 11 Biology notes or study material pdf download
Cell the unit of life class 11 Biology notes or study material pdf downloadVivekanand Anglo Vedic Academy
In the realm of biology, understanding the cell is akin to unlocking the secrets of life itself. The Class 11 Biology curriculum introduces students to the fascinating world of cells, encapsulating the intricate processes that sustain living organisms. The chapter aptly titled "Cell: The Unit of Life" serves as a foundational cornerstone, laying the groundwork for a comprehensive understanding of biology and the complexity of life.Chapter1 themes
1. The document discusses the key themes of biological organization, from molecules to cells to organisms and ecosystems. It explains that biological systems exhibit hierarchical organization, with emergent properties at each new level. Cells are the basic unit of structure and function in living things. DNA encodes the instructions that direct cellular functions and enable inheritance.
2. Structure and function are correlated across all levels of biological organization. Organisms exist as open systems that interact continuously with their environments. Regulatory mechanisms like feedback loops help maintain stability in living systems. Diversity and unity are both evident across the tree of life.
3. Evolution by natural selection is the core theme of biology, as it explains the unity and diversity of life on Earth through
1 chapter themes
1. Biology is organized into hierarchical levels from molecules to ecosystems. Novel properties emerge at each level through interactions between components.
2. Cells are the basic units of structure and function in living things. DNA contains the genetic instructions that are passed from parents to offspring and ensure the continuity of life.
3. Structure and function are correlated at all levels of biological organization, from molecules to ecosystems. Organisms exist as open systems that interact continuously with their environments.
All about cells
All living things are composed of cells, which are the basic unit of structure and function. Key scientists like Hooke, van Leeuwenhoek, Brown, Schwann, Schleiden, and Virchow made important discoveries about cells between 1665-1858. These included the first observations of cells under microscopes and establishing that all cells come from existing cells through division. The cell theory states that all organisms are made up of cells, cells are the basic functional units of life, and new cells are produced from existing cells. Cells carry out essential life functions like extracting energy, responding to stimuli, reproducing, and more.
Cell.pptx
Cellular biology is the study of cells, the basic units of life. There are two main types of cells - prokaryotic and eukaryotic. Prokaryotic cells like bacteria are simpler and lack organelles. Eukaryotic cells like plant and animal cells are more complex and contain organelles. The cell theory states that all living things are made of cells, cells are the basic unit of structure and function, and new cells are produced from existing cells. Organelles like mitochondria and chloroplasts may have originally been independent prokaryotic cells that were engulfed by early eukaryotic cells in a process called endosymbiosis.
Prokaryotes and eukaryotes
The document discusses the history and principles of cell theory. It describes how early microscopists like Hooke, Levenguk, and Purkinje made early observations of cells. In 1839, Schwann and Schleiden formulated the first principles of cell theory: (1) all living things are made of cells and (2) animal and plant cells have similar structure and composition. Later, Virchow added that cells only arise from preexisting cells. The modern cell theory includes four principles: (1) cells are the basic unit of life, (2) cells have similar composition and function, (3) new cells arise from existing cells, and (4) cell specialization leads to tissue and organ formation
Introduction to biology101
Biology is the study of living things to understand how they work. It examines the structure and function of organisms, their relationships with each other and the environment, how they grow and reproduce using DNA, hormones and signals. Major branches are botany, zoology, and microbiology. Biologists study topics like anatomy, physiology, ecology and more. Important scientists include Aristotle, Galen, Darwin, and Leeuwenhoek. The key properties of life are that organisms are made of cells with DNA, maintain order, regulate systems, respond to stimuli, process energy, develop and grow, reproduce, and evolve over time.
Class8 Science Chapter8 Cell
Cell Definition
What is a Cell?
Discovery of Cells
Who discovered cells?
Characteristics of Cells
Types of Cells
Prokaryotic Cells
Eukaryotic Cells
Cell Structure
Cell Membrane
Cell Wall
Cytoplasm
Nucleus
Cell Organelles
Functions of Cell
Cell Theory
Cell Theory.pptx
Cell theory states that living things are composed of one or more cells, that the cell is the basic unit of life, and that cells arise from existing cells.
The cell theory describes the basic properties of all cells.
The three scientists that contributed to the development of cell theory are Matthias Schleiden, Theodor Schwann, and Rudolf Virchow.
A component of the cell theory is that all living things are composed of one or more cells.
A component of the cell theory is that the cell is the basic unit of life.
A component of the cell theory is that all new cells arise from existing cells.
Harsh billore (cell the functional unit of life & cellular organisation)
cell definition, its theory,size and shape , different types of cell, basic difference between prokaryotic and eukaryotic cells; basic difference between unicellular and multicellular organism ; difference between animal and plant cells.
Cell.pptx
Cells are the basic unit of life. They range in size but all cells contain a nucleus and cytoplasm surrounded by a cell membrane. Within the cytoplasm are various organelles that carry out specific functions necessary for life. All organisms are made up of one or more cells that carry out functions like growth, transport of substances, and reproduction through cell division.
Chapter 1 cell biology intro cell
This document provides an introduction to the subject of cell biology. It outlines the learning objectives which are to understand basic cell biology concepts, how molecules cooperate to create living systems, and core cell biology principles. The document also describes the various topics that will be covered in the course, including cellular structures and functions, as well as expectations for students to gain essential knowledge and apply concepts in cell biology.
The cell-theory
The document summarizes the history and key concepts of cell theory. It describes how early microscopists like Hooke, van Leeuwenhoek, and Brown discovered key cell structures and components. In 1838, Schleiden concluded that plants are made of cells, and in 1839, Schwann concluded the same for animals, laying the foundations for cell theory. Virchow later established that cells only arise from pre-existing cells. The modern cell theory states that all living things are made of cells, cells are the basic unit of life, and new cells arise from existing cells. The document also discusses cell size, shape, types (prokaryotic vs. eukaryotic), and some of the
Cell for Yoga Net jrf by Dr Shivam Mishra.pptx
A cell is the structural and fundamental unit of life.
The study of cells from their basic structure to the functions of every cell organelle is called Cell Biology.
Robert Hooke was the first Biologist who discovered cells.
All organisms are made up of cells. They may be made up of a single cell (unicellular), or many cells (multicellular).
Mycoplasmas are the smallest known cells.
Cells are the building blocks of all living beings. They provide structure to the body and convert the nutrients taken from the food into energy.
Cells are complex and their components perform various functions in an organism. They are of different shapes and sizes, pretty much like the bricks of the buildings. Our body is made up of cells of different shapes and sizes.
Cells are the lowest level of organisation in every life form. From organism to organism, the count of cells may vary. Humans have more cells compared to that bacteria.
Cells comprise several cell organelles that perform specialised functions to carry out life processes. Every organelle has a specific structure. The hereditary material of the organisms is also present in the cells.
Cell theory
The cell is the basic unit of structure and life. All organisms are composed of one or more cells. Robert Hooke first observed cells in 1665 when examining cork under a microscope. The cell theory states that all organisms are made of similar basic units called cells, cells come only from pre-existing cells, and all living things have similar chemical components. The modern cell theory includes that organisms are made of cells, cells are the basic functional units of life, and cells reproduce through division of pre-existing cells.
Similar to CELL STRUCTURE & FUNCTION.pptx (20)
Cell the unit of life class 11 Biology notes or study material pdf download
Cell the unit of life class 11 Biology notes or study material pdf download
Harsh billore (cell the functional unit of life & cellular organisation)
Harsh billore (cell the functional unit of life & cellular organisation)
Recently uploaded
share - Lions, tigers, AI and health misinformation, oh my!.pptx
• Pitfalls and pivots needed to use AI effectively in public health
• Evidence-based strategies to address health misinformation effectively
• Building trust with communities online and offline
• Equipping health professionals to address questions, concerns and health misinformation
• Assessing risk and mitigating harm from adverse health narratives in communities, health workforce and health system
Top Effective Soaps for Fungal Skin Infections in India
Swisschem Dermacare has mentioned the List of The Best Antifungal Soap In India 2022. All of these soaps are trusted by various Dermatology Experts.
Basavarajeeyam - Ayurvedic heritage book of Andhra pradesh
Basavarajeeyam is an important text for ayurvedic physician belonging to andhra pradehs. It is a popular compendium in various parts of our country as well as in andhra pradesh. The content of the text was presented in sanskrit and telugu language (Bilingual). One of the most famous book in ayurvedic pharmaceutics and therapeutics. This book contains 25 chapters called as prakaranas. Many rasaoushadis were explained, pioneer of dhatu druti, nadi pareeksha, mutra pareeksha etc. Belongs to the period of 15-16 century. New diseases like upadamsha, phiranga rogas are explained.
Integrating Ayurveda into Parkinson’s Management: A Holistic Approach
Explore the benefits of combining Ayurveda with conventional Parkinson's treatments. Learn how a holistic approach can manage symptoms, enhance well-being, and balance body energies. Discover the steps to safely integrate Ayurvedic practices into your Parkinson’s care plan, including expert guidance on diet, herbal remedies, and lifestyle modifications.
The Best Ayurvedic Antacid Tablets in India
Treat the symptoms of indigestion, heartburn and stomach reflux with the 10 Best Ayurvedic Antacid Tablets in India.
#cALL# #gIRLS# In Dehradun ꧁❤8107221448❤꧂#cALL# #gIRLS# Service In Dehradun W...
#cALL# #gIRLS# In Dehradun ꧁❤8107221448❤꧂#cALL# #gIRLS# Service In Dehradun W...chandankumarsmartiso
#cALL# #gIRLS# In Dehradun ꧁❤8107221448❤꧂#cALL# #gIRLS# Service In Dehradun Women Seeking Service
The Electrocardiogram - Physiologic Principles
These lecture slides, by Dr Sidra Arshad, offer a quick overview of the physiological basis of a normal electrocardiogram.
Learning objectives:
1. Define an electrocardiogram (ECG) and electrocardiography
2. Describe how dipoles generated by the heart produce the waveforms of the ECG
3. Describe the components of a normal electrocardiogram of a typical bipolar lead (limb II)
4. Differentiate between intervals and segments
5. Enlist some common indications for obtaining an ECG
6. Describe the flow of current around the heart during the cardiac cycle
7. Discuss the placement and polarity of the leads of electrocardiograph
8. Describe the normal electrocardiograms recorded from the limb leads and explain the physiological basis of the different records that are obtained
9. Define mean electrical vector (axis) of the heart and give the normal range
10. Define the mean QRS vector
11. Describe the axes of leads (hexagonal reference system)
12. Comprehend the vectorial analysis of the normal ECG
13. Determine the mean electrical axis of the ventricular QRS and appreciate the mean axis deviation
14. Explain the concepts of current of injury, J point, and their significance
Study Resources:
1. Chapter 11, Guyton and Hall Textbook of Medical Physiology, 14th edition
2. Chapter 9, Human Physiology - From Cells to Systems, Lauralee Sherwood, 9th edition
3. Chapter 29, Ganong’s Review of Medical Physiology, 26th edition
4. Electrocardiogram, StatPearls - https://www.ncbi.nlm.nih.gov/books/NBK549803/
5. ECG in Medical Practice by ABM Abdullah, 4th edition
6. Chapter 3, Cardiology Explained, https://www.ncbi.nlm.nih.gov/books/NBK2214/
7. ECG Basics, http://www.nataliescasebook.com/tag/e-c-g-basics
Best Ayurvedic medicine for Gas and Indigestion
Here is the updated list of Top Best Ayurvedic medicine for Gas and Indigestion and those are Gas-O-Go Syp for Dyspepsia | Lavizyme Syrup for Acidity | Yumzyme Hepatoprotective Capsules etc
Cell Therapy Expansion and Challenges in Autoimmune Disease
There is increasing confidence that cell therapies will soon play a role in the treatment of autoimmune disorders, but the extent of this impact remains to be seen. Early readouts on autologous CAR-Ts in lupus are encouraging, but manufacturing and cost limitations are likely to restrict access to highly refractory patients. Allogeneic CAR-Ts have the potential to broaden access to earlier lines of treatment due to their inherent cost benefits, however they will need to demonstrate comparable or improved efficacy to established modalities.
In addition to infrastructure and capacity constraints, CAR-Ts face a very different risk-benefit dynamic in autoimmune compared to oncology, highlighting the need for tolerable therapies with low adverse event risk. CAR-NK and Treg-based therapies are also being developed in certain autoimmune disorders and may demonstrate favorable safety profiles. Several novel non-cell therapies such as bispecific antibodies, nanobodies, and RNAi drugs, may also offer future alternative competitive solutions with variable value propositions.
Widespread adoption of cell therapies will not only require strong efficacy and safety data, but also adapted pricing and access strategies. At oncology-based price points, CAR-Ts are unlikely to achieve broad market access in autoimmune disorders, with eligible patient populations that are potentially orders of magnitude greater than the number of currently addressable cancer patients. Developers have made strides towards reducing cell therapy COGS while improving manufacturing efficiency, but payors will inevitably restrict access until more sustainable pricing is achieved.
Despite these headwinds, industry leaders and investors remain confident that cell therapies are poised to address significant unmet need in patients suffering from autoimmune disorders. However, the extent of this impact on the treatment landscape remains to be seen, as the industry rapidly approaches an inflection point.
Dehradun #ℂall #gIRLS Oyo Hotel 8107221448 #ℂall #gIRL in Dehradun
Dehradun #ℂall #gIRLS Oyo Hotel 8107221448 #ℂall #gIRL in Dehradun
ABDOMINAL TRAUMA in pediatrics part one.
Abdominal trauma in pediatrics refers to injuries or damage to the abdominal organs in children. It can occur due to various causes such as falls, motor vehicle accidents, sports-related injuries, and physical abuse. Children are more vulnerable to abdominal trauma due to their unique anatomical and physiological characteristics. Signs and symptoms include abdominal pain, tenderness, distension, vomiting, and signs of shock. Diagnosis involves physical examination, imaging studies, and laboratory tests. Management depends on the severity and may involve conservative treatment or surgical intervention. Prevention is crucial in reducing the incidence of abdominal trauma in children.
A Classical Text Review on Basavarajeeyam
Basavarajeeyam is a Sreshta Sangraha grantha (Compiled book ), written by Neelkanta kotturu Basavaraja Virachita. It contains 25 Prakaranas, First 24 Chapters related to Rogas& 25th to Rasadravyas.
Promoting Wellbeing - Applied Social Psychology - Psychology SuperNotes
A proprietary approach developed by bringing together the best of learning theories from Psychology, design principles from the world of visualization, and pedagogical methods from over a decade of training experience, that enables you to: Learn better, faster!
Recently uploaded (20)
share - Lions, tigers, AI and health misinformation, oh my!.pptx
share - Lions, tigers, AI and health misinformation, oh my!.pptx
Vestibulocochlear Nerve by Dr. Rabia Inam Gandapore.pptx
Vestibulocochlear Nerve by Dr. Rabia Inam Gandapore.pptx
Top Effective Soaps for Fungal Skin Infections in India
Top Effective Soaps for Fungal Skin Infections in India
Basavarajeeyam - Ayurvedic heritage book of Andhra pradesh
Basavarajeeyam - Ayurvedic heritage book of Andhra pradesh
Integrating Ayurveda into Parkinson’s Management: A Holistic Approach
Integrating Ayurveda into Parkinson’s Management: A Holistic Approach
#cALL# #gIRLS# In Dehradun ꧁❤8107221448❤꧂#cALL# #gIRLS# Service In Dehradun W...
#cALL# #gIRLS# In Dehradun ꧁❤8107221448❤꧂#cALL# #gIRLS# Service In Dehradun W...
Cell Therapy Expansion and Challenges in Autoimmune Disease
Cell Therapy Expansion and Challenges in Autoimmune Disease
Dehradun #ℂall #gIRLS Oyo Hotel 8107221448 #ℂall #gIRL in Dehradun
Dehradun #ℂall #gIRLS Oyo Hotel 8107221448 #ℂall #gIRL in Dehradun
Tests for analysis of different pharmaceutical.pptx
Tests for analysis of different pharmaceutical.pptx
Promoting Wellbeing - Applied Social Psychology - Psychology SuperNotes
Promoting Wellbeing - Applied Social Psychology - Psychology SuperNotes
CELL STRUCTURE & FUNCTION.pptx
- 1. الرحيم الرحمن هللا بسم القضارف جامعة Faculty of Medical Laboratory Sciences Cell Biology Introduction to the course : Presented by HASSAN ELNUR ADAM M.Sc
- 2. Introduction to the Study of Cell Biology Objectives A brief outline of the early history of cell biology. Familiarize with the basic properties of all cells. Describe the differences between prokaryotic and eukaryotic cells.
- 3. • Biology = science of life – Characteristics, classification and behaviors of organisms, – how species and individuals come into existence, and – the interactions they have with each other and with their environment.
- 4. • Modern biology is divided into 2 categories based on primary level of focus: –Organismic biology ~ emphasize on biodiversity, evolutionary relationships , adaptations, and ecology of plants & animals. –Molecular & cellular biology • MB – concerns with interactions between the various systems of a cell, including the interrelationship of DNA, RNA, and protein synthesis and how these interactions are regulated. • CB –studies the physiological properties of cells, as well as their behaviors, interactions, and environment.
- 5. Modern Cell Biology • Involve interweaving of 3 historically distinct disciplines 1. Cytology (the study of cells) – Microscopic study of cell structure organization 2. Biochemistry – chemistry of biological structure & function/cellular function 3. Genetics – Information flow
- 6. The Discovery of Cells - The cell theory • The term cell was first used by the English scientist Robert Hooke (1635-1703), who, in the mid-seventeenth century, used the term to describe the structure of cork. • The Dutch scientist Anton van Leeuwenhoek (1632-1723) made the first recorded observations of bacterial cells (termed "animalcules") from pond water & tooth scrapings. • 1830s –importance of cells realised – 1838 - German botanist Matthias Schleiden (1804-1881) observed that despite differences in tissue structure, all plants tissues were made of cells.
- 7. Rudolph Virchow 1821 - 1902
- 8. Cell Theory • All living things are made up of cells. • Cells are the smallest working units of all living things. • All cells come from preexisting cells through cell division.
- 9. Definition of Cell A cell is the smallest unit that is capable of performing life functions.
- 10. Examples of Cells Amoeba Proteus Plant Stem Red Blood Cell Nerve Cell Bacteria
- 11. 11 Organization of the Body
- 12. Two Types of Cells •Prokaryotic •Eukaryotic
- 13. Prokaryotes • Lack a nucleus • Have a single chromosome • Reproduce by binary fission • Include bacteria
- 15. Eukaryotes • Contain a nucleus & membrane bound organelles • Multiply cells by mitosis
- 16. Eukaryotic • Contain organelles surrounded by membranes • Most living organisms Plant Animal http://library.thinkquest.org/C004535/eukaryotic_cells.html
- 17. Questions???
- 18. Thanks 18