biology i chapter 4 - sd27j · 2015-10-06 · biology i chapter 3 cells . discovery of the cell ......
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Biology I Chapter 3
CELLS
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Discovery of the Cell
Robert Hooke 1665
Anton Van Leeuwenhoek 1673
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Cell Theory
All living things are composed of one or more cells
Cells are the basic unit of structure and function in organisms
Cells come only from the reproduction of existing cells
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Cell Diversity and Organelles
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Prokaryotes
No Membrane bound organelles
Very Simple
Bacteria
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Eukaryotes
Have advanced, membrane bound organelles
Advanced life
Plants, animals and fungi
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Cell Membrane-covering
Phospholipid Bilayer
Integral proteins
Steroids and
carbohydrates
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Traits of the Cell Membrane
Fluid mosaic-moves
Selectively permeable-specific on what goes in and out
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Nucleus-control center
Nuclear Membrane
Nucleolus
Pores
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Cytoplasm:
Space within a cell
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Mitochondria-energy ATP
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Ribosomes
Make proteins
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Golgi Apparatus-package and storage
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Lysosome-breakdown
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The Cytoskeleton-structure
Microfilaments
Microtubules
Centrioles and spindle fibres
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Cilia and Flagella-movement
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Vacuole-storage Plants-very large vacuole
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Plant (And some Fungi) Organelles
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Cell Wall-structure
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Chloroplasts-energy and food production
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Plants under the microscope: Identify structures & function
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Animals under the microscope: Identify structures & function