Cell part1
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This document provides an overview of cell structure and organization. It discusses that cells are the basic unit of life and how microscopes allowed their discovery. The key points are: 1) All organisms are made of cells, which are the basic functional units. Cells make up tissues, organs, organ systems and whole organisms. 2) Eukaryotic cells have internal structures like a nucleus, mitochondria and chloroplasts that prokaryotic cells lack. 3) The main parts of the eukaryotic cell and their functions are described, including boundaries, control centers, transport and energy production organelles.
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The document discusses cell theory and outlines the key discoveries by scientists like Hooke, Leeuwenhoek, Schleiden, and Schwann that led to the current understanding of cells. It also provides details on the structure and functions of organelles in plant and animal cells, compares characteristics of prokaryotic and eukaryotic cells, and describes different types of plant tissues.Cells
Cellspriya tamang
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The document provides an overview of cells, their structures, and functions, defining cells as the basic units of life for all living organisms. It details the levels of organization in biological systems and outlines the historical development of cell theory, highlighting key discoveries and milestones in cell biology. The distinctions between prokaryotic and eukaryotic cells, as well as between plant and animal cells, are also discussed in terms of their complexity and functions.A798057369_21039_13_2018_Structure & Organization-Animal cell-Dr. Mishra.pdf
A798057369_21039_13_2018_Structure & Organization-Animal cell-Dr. Mishra.pdfAbdulWahab672
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The document discusses the discovery, structure, and function of cells, highlighting key historical figures like Robert Hooke and Anton van Leeuwenhoek. It explains cell theory, cell diversity in size and shape, and the differences between prokaryotic and eukaryotic cells, detailing the roles of numerous organelles. Additionally, it covers essential concepts such as the cell membrane structure, transport mechanisms, and the significance of surface area-to-volume ratios in cells.Atv what is biology
Atv what is biologyJessica Villarmente
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Biology is the study of life. It includes the study of living organisms from microscopic molecules and cells to entire ecosystems. The main branches of biology study anatomy, physiology, cells, genetics, ecology, and more. Key characteristics of living things include order, adaptation, response to the environment, regulation, energy processing, growth, and reproduction. Biology is studied at different levels of organization from molecules to biosphere. The basic units of structure and function in living things are cells, which contain organelles that carry out essential functions. Plant cells differ from animal cells in having additional structures like chloroplasts and a cell wall.Cell
CellKitelVictoria
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1. The document discusses the basic structures and organelles found within animal and plant cells, including the cell membrane, nucleus, mitochondria, chloroplasts, and cell wall.
2. It also describes some early scientists who contributed to cell discoveries, such as Robert Hooke who first observed and named plant "cells" in 1663 and Anton van Leeuwenhoek who discovered single-celled organisms in pond water in 1683.
3. Additionally, the document outlines the main parts of the light microscope, such as the eyepiece, stage, objective lenses, and how magnification is calculated by multiplying the ocular and objective powers.A Brief History of the Cell and it's Anatomy
A Brief History of the Cell and it's AnatomyJohnLloydChristopher1
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The document outlines the discovery and development of cell theory, highlighting key contributors such as Anton van Leeuwenhoek and Robert Hooke, and details the principles of cell theory, which state that all living organisms are made of cells and that all cells arise from pre-existing cells. It categorizes cells into prokaryotic and eukaryotic types, describes their components, including organelles like mitochondria and chloroplasts, and explains the functions and structures of various cellular components such as the cytoskeleton and plasma membrane. Additionally, it discusses the roles of organelles in cellular metabolism and organization.UNIT - 1_1 to 80.pptx
UNIT - 1_1 to 80.pptxDipaliAgrawal6
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- The cell is the basic unit of life. Cells were first discovered by Robert Hooke in 1665.
- An E. coli cell is typically 1-2 μm in length and 1 μm3 in volume, containing approximately 3 million protein molecules. The interior of the cell is extremely crowded.
- Cells replicate through the cell cycle of DNA replication and mitosis, where one cell divides into two daughter cells with identical DNA. Cell organization and development allows for the formation of tissues and anatomical structures.Cells and the Cell Theory56576778786.pptx
Cells and the Cell Theory56576778786.pptxIrishJohnGulmatico1
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1. The document discusses the history and development of the cell theory by scientists like Hooke, Leeuwenhoek, Schwann, Schleiden, and Virchow.
2. The cell theory states that all living things are made of cells, cells are the basic functional units of life, and all cells come from pre-existing cells.
3. The document compares prokaryotic and eukaryotic cells, describing key differences in their structures like nuclei and organelles. It provides examples of bacterial and plant/animal cells.Human-Physiology-Cell-Structure-function-I-lecture-31.July_.2012.ppt
Human-Physiology-Cell-Structure-function-I-lecture-31.July_.2012.pptAidilRamadhan7
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1. The document discusses cell structure and function, including the history of cell theory and key developments.
2. It describes the basic components of prokaryotic and eukaryotic cells, including the plasma membrane, nucleus, cytoplasm, and organelles.
3. The endomembrane system is described, including how it modifies proteins and lipids and transports them within the cell.Lecture 2
Lecture 2 tkeee
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Here are the definitions and functions of the requested cellular components:
a. Chloroplast - Organelle found in plant cells where photosynthesis occurs. It contains chlorophyll.
b. Mitochondrion - Organelle where cellular respiration occurs, extracting energy from food through the process of respiration.
c. Nucleus - Control center of the cell that contains the genetic material DNA and directs cell activities.
d. Protoplasm - Living contents of the cell, consisting of the cytoplasm and organelles outside the nucleus.
e. Endoplasmic reticulum - Network of membranes that synthesize proteins and lipids and transport materials within the cell.
[Here is a labeled diagram of the cellChapter 4 - Cells
Chapter 4 - Cellscavalierem
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Robert Hooke first observed cells in 1665 using a microscope to look at cork. Anton van Leeuwenhoek later observed the first living cells in pond water in 1673. In the 1800s, scientists including Matthias Schleiden, Theodor Schwann, and Rudolph Virchow developed the cell theory, which states that all living things are composed of cells, cells are the basic units of structure and function, and cells only come from preexisting cells. Cells later evolved to be more specialized and form multicellular organisms through the development of tissues, organs, and organ systems.The cell
The cellPSPree
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1. The cell is the basic structural and functional unit of all living organisms.
2. Early scientists like Hooke, Leeuwenhoek, Schleiden, and Schwann made important discoveries about cells using microscopes in the 1600s-1800s.
3. The cell theory states that all living things are made of cells, cells are the basic units of structure and function, and new cells are produced from existing cells.cceeeellhfrfhnmmgfddfnmmnbvcxdfghnb2.pptx
cceeeellhfrfhnmmgfddfnmmnbvcxdfghnb2.pptxJoebest8
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The document discusses the discovery and structure of cells, highlighting key historical figures like Robert Hooke and Anton von Leeuwenhoek. It outlines the cell theory, categorizing cells into prokaryotes and eukaryotes, and describes various cell organelles and their functions. Additionally, it contrasts the features of plant and animal cells.Ch. 7 life is cellular By Hamdy Karim.
Ch. 7 life is cellular By Hamdy Karim.Hamdy Karim
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The document outlines the historical development of cell theory, which states that all living organisms are made up of cells, cells are the smallest unit of life, and all cells arise from pre-existing cells. It describes the structural differences between prokaryotic and eukaryotic cells, detailing various cell structures and their functions, including the nucleus, mitochondria, and cell membrane. Additionally, it discusses cellular transport processes, homeostasis in unicellular and multicellular organisms, and the specialization and organization of cells into tissues, organs, and organ systems.Eukaryotic cell structure
Eukaryotic cell structureFelecia Ford
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Eukaryotic cells have organelles that compartmentalize functions. Key organelles include the nucleus, which contains DNA; mitochondria and chloroplasts, which generate energy; and the endomembrane system of ER, Golgi, and vesicles, which modifies and transports proteins. The cytoskeleton, including microtubules, microfilaments, and intermediate filaments, maintains cell shape and enables movement. Plant cells have additional structures like cell walls and plasmodesmata between cells.Organelles
OrganellesRachel Raines
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The document summarizes the major organelles found in eukaryotic cells. It describes 10 organelles: the nucleus, which controls the cell and contains DNA; ribosomes, which synthesize proteins; the endoplasmic reticulum, which helps produce cell membranes; the Golgi apparatus, which modifies and packages molecules; lysosomes, which digest materials; vacuoles, which store water and nutrients in plant cells; mitochondria, which generate energy; chloroplasts, which capture sunlight for photosynthesis in plant cells; the cytoskeleton, made of microfilaments and microtubules that support the cell; and centrioles, which help with cell division. It concludes by contrasting typical characteristics of plant and animal cellsCells
CellsNorlina Abdul Aziz
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The document discusses the history and development of cell theory. It describes how early microscopes allowed Robert Hooke and Anton van Leeuwenhoek to first observe "cells" and living cells. The development of electron microscopes provided higher resolutions. Matthias Schleiden, Theodor Schwann, and Rudolph Virchow established the three main points of cell theory - that all living things are made of cells, cells are the basic units of structure and function, and new cells are produced from existing cells. The document then describes the diversity of cell sizes, shapes, and internal structures between eukaryotic and prokaryotic cells.Unit 2 Characteristics of cells lesson week 7and 8.pptx
Unit 2 Characteristics of cells lesson week 7and 8.pptxNOELIEIBACARRA
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The document outlines 8 characteristics of life and discusses the structure and function of cells. It notes that all living things are made of cells, which are the basic units of structure and function. Cells come in two main types - prokaryotic cells that lack a nucleus and organelles, and eukaryotic cells that have a nucleus and organelles like mitochondria and chloroplasts. The document also describes the key parts of the cell like the cell membrane, nucleus, mitochondria and how different cell types are specialized for their functions.Ad
Cell part1
- 1. Chapter Seven A View of the Cell Free powerpoints at http://www.worldofteaching.com
- 2. Cellular Organization ? Cell ? Tissue – group of cells functioning together. ? Organ – group of tissues functioning together. ? Organ System – group of organs functioning together. ? Organism – group of organ systems functioning together.
- 3. The History of the Cell ? The Cell –The basic unit of an organism –Discovery made possible by the invention of the microscope
- 4. Microscopes and Cells ? 1600’s. –Anton van Leeuwenhoek first described living cells as seen through a simple microscope.
- 5. Microscopes and Cells –Robert Hooke used the first compound microscope to view thinly sliced cork cells. ?Compound scopes use a series of lenses to magnify in steps. ?Hooke was the first to use the term “cell”.
- 6. Microscopes and Cells ? 1830’s. –Mathias Schleiden identified the first plant cells and concluded that all plants made of cells. - Thomas Schwann made the same conclusion about animal cells.
- 7. Cell Theory: ? All organisms are made up of one or more cells. ? The cell is the basic unit of organization of all organisms. ? All cells come from other cells all ready in existence.
- 8. Two Basic Cell Types 1) Prokaryote –Lacks internal compartments. –No true nucleus. –Most are single-celled (unicellular) organisms. –Examples: bacteria
- 9. Two Basic Cell Types 2) Eukaryote –Has several internal structures (organelles). –True nucleus. –Either unicellular or multicellular. unicellular example: yeast multicellular examples: plants and animals
- 10. The Parts of The Eukaryotic Cell 1) Boundaries A) Plasma Membrane -- Serves as a boundary between the cell and its external environment. -- Allows materials to pass in and out of the cell.
- 11. 1) Boundaries B) Cell Wall -- Surrounds the plasma membrane of the cells of plants, bacteria, and fungi. -- Plant cell walls contain cellulose while fungi cell walls contain chitin.
- 12. The Parts of The Eukaryotic Cell: 2) Controls A) Nucleus ?Regulates cell function. ?Surrounded by a double- layered membrane (nuclear enveloped) with large pores that allow materials to pass in and out of the nucleus. ?Contains chromatin – long tangles of DNA.
- 13. 2) Controls B) Nucleolus ?Found in the nucleus and responsible for ribosome production. Ribosomes are the sites of protein production.
- 14. The Parts of The Eukaryotic Cell: 3) Assembly –Cytoplasm ?The jelly-like material that surrounds the organelles.
- 15. The Parts of The Eukaryotic Cell: 4) Transport A) Endoplasmic reticulum ?Folded membrane that acts as the cell’s delivery system. ?Smooth E.R. contains enzymes for lipid synthesis. ?Rough E.R. is studded with ribosomes for protein synthesis.
- 16. 4) Transport B) Golgi apparatus (or Golgi body) ?A series of flattened sacs where newly made lipids and proteins from the E.R. are repackaged and shipped to the plasma membrane.
- 17. The Parts of The Eukaryotic Cell: 5) Storage A) Vacuoles ?A sac of fluid surrounded by a membrane used to store food, fluid, or waste products.
- 18. 5) Storage B) Lysosomes ?Contain a digestive enzyme. ?Can fuse with vacuoles to digest food, or can digest worn cell parts. ?Also known as “suicide sacs” because they can also destroy the whole cell.
- 19. The Parts of The Eukaryotic Cell: 6) Energy Transformers Mitochondria ?Produce the energy for the cell. ?Also known as the “powerhouse of the cell”. ?Has a highly folded inner membrane (cristae).
- 20. 6) Energy Transformers B) Chloroplasts -- Found in plant cells and some protists. -- Transforms light energy into chemical energy which is stored in food molecules. -- Contain chlorophyll – a green pigment that traps light energy and gives plants their green color.
- 21. The Parts of The Eukaryotic Cell: 7) Support –Cytoskeleton ?A network of thin, fibrous materials that act as a scaffold and support the organelles. ?Microtubules – hollow filaments of protein. ?Microfilaments – solid filaments of protein.
- 22. The Parts of The Eukaryotic Cell: 8) Locomotion 1) Cilia ?Short, numerous, hair-like projections from the plasma membrane. ?Move with a coordinated beating action.
- 23. 8) Locomotion B) Flagella ?Longer, less numerous projections from the plasma membrane. ?Move with a whiplike action.
- 24. The Parts of The Eukaryotic Cell: 9) Cell Division Centrioles – made of protein. – play a role in the splitting of the cell into two cells. – found in animal and fungi cells.