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Biology Chapter 3 CYTOLOGY
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The Cell Theory Schwann Schleiden Virchow
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Cell - Basic Unit of Life
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Uni- Multi- The Cell Theory states:
1. All living things are made of one or more cells – Uni- Multi-
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2. Cells are the basic units of
_______ and _______ cells -- ___ -- ___ -- ___ -- ___ ??
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Skin Cells Nerve Cells Muscle Cells
Examples of cells: Skin Cells Nerve Cells Muscle Cells
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3. All existing cells are produced from living cells
cell union OR cell division -
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Cells Prokaryote p.72 Ex: Bacteria cell membrane cytoplasm Bacterium
(colored SEM; magnification 8800x) cytoplasm
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Eukaryotic cells – pg. 72 nucleus organelles cell membrane
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Organelles cell membrane pg. 81 1. outer boundary outside inside
2. selectively permeable 3. phospholipid bilayer (fig. 3.1) a. hydrophilic (polar) b. hydrophobic (nonpolar) outside inside
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cytoplasm -
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nucleus pg. 75
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nuclear envelope-
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nucleolus-
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ribosome- pg 76
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Endoplasmic reticulum-
1. smooth 2. rough 3. vesicle
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golgi apparatus (body) - pg 76
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mitochondria- pg. 77
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cytoskeleton – pg. 73 1. microfilament 2. microtubule 3. intermediate filament
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Animal Cell Unique Organelles Food Vacuole
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lysosome pg. 78
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centriole
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Plant Cell Unique Organelles
A plant cell does NOT have a lysosome, food vacuole, or centrioles…WHY NOT?
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Plant Cells
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cell wall pg. 79
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central vacuole: pg. 77
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chloroplast - “chloro”-
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Optional structures of Cells
Cilia Flagella
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Cell Review
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Draw the cells for review
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Unitedstreaming Resources www.unitedstreaming.com
"Prokaryotic Cells." Elements of Biology: The Cell: Structure and Function. United Learning “ “Cytoplasm of Plant Cells.” Biology: The Science of Life . United Learning. 2002 “ Cells: Basic Unit of Life.” Biology: The Science of Life. United Learning. 2002 “Parts of an Animal Cell.” Introducing the Cell. Rainbow Media. 1997 “ The Electron Microscope. ” The Incredible World of Microscopes. Rainbow Media “The Animal Cell.” Image file. Paul Fuqua. 2002
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