Cell biology assignment 1
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Cell biology is the study of the structure and function of cells, the basic units of life. It encompasses prokaryotic and eukaryotic cells and includes sub-topics like cell metabolism, communication between cells, the cell cycle, biochemistry within cells, and cellular composition. A cell consists of a cell membrane, nucleus, and cytoplasm containing organelles. Cell structure and composition, metabolism, communication between cells, biochemistry, and the cell cycle are key areas of focus in cell biology.
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Plant cells have several structures that are similar but also different than animal cells. The main parts of a plant cell include the cytoplasm, nucleus, cell membrane, cell wall, chromosomes, and plasmodesmata. The nucleus contains the genetic material and controls the activities of the cell. Surrounding the cell membrane is a tough but flexible cell wall that provides structural support and protection to the cell. Plasmodesmata are channels that allow molecules to travel between neighboring plant cells.
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The document provides an overview of cell biology, including:
1. It describes the history of cell discovery from Hooke and Leeuwenhoek's early observations of cells to the development of the cell theory stating that cells are the basic unit of life.
2. It introduces the basic anatomy and structures of plant and animal cells, including the plasma membrane, cytoplasm, nucleus, and organelles like mitochondria and chloroplasts.
3. It compares prokaryotic and eukaryotic cells and explains how cells are organized into tissues, organs and organ systems within multicellular organisms.
Human Anatomy & Physiology _ Lecture Notes _1
This document provides an overview of the structure and functions of the major components of the human cell, including the plasma membrane, cytoplasm, cytoskeleton, organelles like the nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, lysosomes, peroxisomes, and ribosomes. It also discusses cellular processes like protein synthesis, cellular reproduction, the cell cycle, mitosis, and meiosis. Additionally, it covers topics related to human anatomy and physiology like the structure and function of blood cells, blood plasma, and the immune system.
Chapter 4th cell and tissues
This document summarizes key aspects of cell biology. It describes the structures and functions of eukaryotic cells including cell organelles like the nucleus, mitochondria, chloroplasts, endoplasmic reticulum, Golgi apparatus, lysosomes, and vacuoles. It also compares the key differences between prokaryotic and eukaryotic cells, noting that eukaryotic cells are generally larger, have a nucleus bounded by a nuclear envelope, and contain membrane-bound organelles, while prokaryotic cells lack these structures. The document provides details on the composition and functions of important cell structures like the cell membrane, cell wall, and cytoplasm.
Lecture 1 Introduction to Cell Structure and Composition.pdf
This document provides an introduction and overview of the Cell Biology course SBL 203. It outlines the course goals, learning outcomes, delivery mode, assessment, references and reading materials, course outline, and contact information for the lecturer. The course aims to provide an introduction to basic cell biology principles including the structure and function of cellular components in prokaryotic and eukaryotic cells, cellular division processes, and the synthesis of biomolecules like DNA, RNA, and proteins. Students will learn through lectures, group work, assignments, essays and practical experiments. Their performance will be evaluated through exams, tests, and practical assessments.
An Introduction Of Cell Biology
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An Introduction Of Cell Biology
Introduction to Cell Biology
A Cell is the smallest structural and functional unit of an organism and consists of cytoplasm and a nucleus enclosed in a membrane
A Prokaryotic Cell are cells without a membrane bound nucleus. An example of a prokaryotic cell is bacteria.
A Eukaryotic Cell does have a membrane bound nucleus, making it different from a Prokaryotic Cell. The Nucleus contains genetic material and is surrounded by a nuclear envelope. An example is an animal cell.
Both types of cells contain organelles, each with a specific function. Plant and animals cells both contain a nucleus, cell membrane, cytoplasm and mitochondria. What defines the two cells is the plant cell also contains a rigid cell wall, a permanent vacuole and chloroplasts. The Nucleus contains genetic material and controls how the cell operates. The Cell surface membrane, or plasma, surrounds the cell and controls what enters and leaves. Membranes are said to divide up the cytoplasm of eukaryotic cells. The Cytoskeleton, which is made up of microtubules and microfilaments, moves the cytoplasm during cell migrations. Mitochondria is where aerobic respiration is performed. Protein synthesis happens in the Ribosomes. In terms of the plant cell, the Rigid Cell Wall strengthens the cell and helps maintain the structure. The Chloroplasts contain chlorophyll, which absorbs light for a plant to perform photosynthesis. The Permanent Vacuole is filled with sap and keeps the cell turgid.
A Eukaryotic cell has
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The Cell Presentation for Grade 7
Cells are the basic structural and functional units of all living organisms. They were first discovered by Robert Hooke in 1665 using a microscope. The cell theory states that cells are the fundamental unit of structure and function in living things. Cells contain organelles like the nucleus, mitochondria, Golgi bodies, and lysosomes that allow them to carry out essential functions like energy production, protein transport, waste disposal, and more. Plant and animal cells have similar organelles but plant cells have an additional rigid cell wall and chloroplasts that animal cells lack.
Introduction to biochemistry
the branch of science concerned with the chemical and physico-chemical processes and substances that occur within living organisms.
the processes and substances with which the science of biochemistry is concerned.
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- 1. Cell Biology Dr. Bibu John Kariyil Assistant Professor, CVAS, Pookode
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