Cell Presentation
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The document summarizes three key organelles in animal cells: the nucleus, which contains the cell's DNA and sends instructions to ribosomes; the cell membrane, which separates the cell from the outside world and controls what enters and exits the cell; and ribosomes, which are located throughout the cytoplasm and produce proteins using instructions from the nucleus.
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1) Passive diffusion - Lipid-soluble drugs pass directly through the membrane.
2) Facilitated diffusion - Carrier proteins transport specific molecules like glucose.
3) Active transport - Energy-dependent pumps move molecules against a concentration gradient.
Cell Organelles with a cell song
Cells are the basic unit of all living things according to the cell theory. All organisms are made up of one or more cells, and cells only come from pre-existing cells. The main components of a cell include the cell membrane, cytoplasm, and nucleus. The cell membrane surrounds the cell and regulates what passes in and out. Within the cell is the cytoplasm, mainly composed of water, salts, and proteins. Organelles are structures that have specialized functions within cells, and include the nucleus, endoplasmic reticulum, ribosomes, vacuoles, Golgi apparatus, lysosomes, mitochondria, and plastids in plant cells.
Cellppt
This document provides information about cell structure and organization. It defines cells, tissues, organs and organ systems. It describes key differences between plant and animal cells as well as differences between prokaryotic and eukaryotic cells. It also outlines the structure and functions of important cell organelles including the plasma membrane, cell wall, cytoplasm, Golgi apparatus, endoplasmic reticulum, lysosomes, mitochondria, ribosomes and nucleus. Large vacuoles in plant cells are also discussed.
2. cell structure and functions
The document discusses the structure and functions of cells. It describes the principal parts of a cell as the cell membrane, protoplasm and its organelles, and the nucleus. It provides details on the structures and roles of various organelles, including the mitochondria, ribosomes, endoplasmic reticulum, Golgi bodies, vacuoles, lysosomes, and chloroplasts. The document also reviews the differences between plant and animal cells, focusing on structures specific to plant cells like the cell wall, chloroplasts, and vacuoles.
Cell Organelles
The document describes the main cell organelles found in eukaryotic cells, including their structures and functions. It notes that the nucleus is the control center that contains DNA, the cell membrane forms the boundary, and the endoplasmic reticulum transports proteins and lipids. Other organelles mentioned are ribosomes for protein synthesis, Golgi apparatus for packaging molecules, mitochondria for energy production, chloroplasts for photosynthesis in plants, vacuoles for storage, and centrioles aiding cell division.
Plant Cell.Ppt.Final
The cell is the smallest unit of life and comes in two main types - prokaryotic and eukaryotic. Prokaryotic cells are smaller while eukaryotic cells contain membrane-bound structures like the nucleus which houses DNA. Plant and animal cells also differ in structures like plant cells having a cell wall and chloroplasts for photosynthesis. Various cell organelles each have important functions like the mitochondria producing energy and lysosomes breaking down waste.
CELL: THE FUNDAMENTAL UNIT OF LIFE
The document discusses the basic structure and components of cells. It defines cells as the fundamental unit of life and notes they were first discovered by Robert Hooke in 1665. It describes unicellular organisms that are single cells and multicellular organisms composed of many cells. The key components of cells discussed include the plasma membrane, cell wall in plant cells, nucleus containing DNA and chromosomes, and cytoplasm containing organelles.
Nucleus
1. The nuclear envelope possesses nuclear pores that allow for transport of materials between the nucleus and cytoplasm.
2. The nuclear pores contain annuli, which are circular structures that the inner and outer membranes of the nuclear envelope fuse through.
3. The nuclear envelope separates the nucleus from the cytoplasm and regulates transport while protecting the DNA.
Cell and tissue
The document provides information on cells and their structures. It defines the cell as the basic unit of life and describes key cellular components including the cell membrane, cytoplasm, nucleus, organelles like mitochondria and lysosomes, and other structures. It also explains the process of mitosis and how cells divide to form two daughter cells. Additionally, it discusses the four main types of tissues - epithelial, connective, muscle and nervous tissue - and provides details on their characteristics and functions.
CELL ORGANELLES
The document provides an overview of cell organelles. It begins by defining a cell and its basic components. It then distinguishes between prokaryotic and eukaryotic cells, noting that eukaryotic cells are more complex with internal organelles. The three major parts of the cell - plasma membrane, nucleus, and cytoplasm - are introduced. Further details are given about the nucleus, its structures, and its role. The cytoplasm and its components of cytosol and inclusions are defined. Finally, the key organelles found in eukaryotic cells are described, including their structures and functions.
Cell structureIGCSE
This document provides information about cell structure and organization in eukaryotic and prokaryotic cells. It describes the general structures of animal and plant cells, including the cell membrane, cytoplasm, nucleus, mitochondria, endoplasmic reticulum, vesicles, chloroplasts (in plants), and cell wall (in plants). It notes both the similarities between plant and animal cells as well as their differences. The document also provides a brief overview of prokaryotic cell structure, noting that prokaryotes like bacteria are much smaller than eukaryotic cells, lack a nucleus, and have DNA floating in the cytoplasm rather than within a nucleus.
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Cell Presentation
- 1. An anticlimactic map to organelles The Cell
- 3. Cell Membrane The membrane separates the cell from the outside world as well as compartments inside the cell that help protect important processes. It is a thin membrane enclosing the cytoplasm of a cell which controls what comes in and out of the cell. This characteristic is semi permeable, meaning that it only lets certain things in and certain things out. Water, for example, is able to go through the cell membrane while other materials are not.
- 4. Ribosomes