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test 2 notes - 9/22/08 Notes for Test 2 Chapter 5 Cell...

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Notes for Test 2 Chapter 5 Cell Structure and Function Cell theory o 1. All living things are composed of one or more cells o 2. Smallest living things are single cells & cells are functional units in multi cellular organisms o 3. Cells come from preexisting cells What are the basic features of all cells? o 1. Plasma membrane o 2. DNA as hereditary recipe o 3. Cytoplasm o o 5. Cells are small Relative Sizes (fig 5-1) o Eukaryotic cells o Mitochondrion o Virus o Protein o Atom Surface-to-Volume ratio o As the radius grows, the volume grows at a faster rate than surface, s/v ratio gets smaller o Could break apart and make a bunch of smaller areas; the volume gets smaller, and the s/v ratio is now high What are the features of prokaryotic cells? o Prokaryotic Smaller, 1-5 micrometers No membrane-bound organelles No nucleus DNA in circular loop o Eubacteria and archaea Generalized prokaryote (fig 5-2) What are the features of eukaryotic cells? o
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This note was uploaded on 09/25/2008 for the course BIOL 1001 taught by Professor Minor during the Fall '08 term at LSU.

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test 2 notes - 9/22/08 Notes for Test 2 Chapter 5 Cell...

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