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BIOL 1010 and BIOL 1011 - Lecture 2
- Exploring Cell Structure and Function –
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What are the 3 tenets or assumptions of the modern Cell Theory?
(1) cells are the basic units of life
(2) All organisms are composed if cells
(3) all cells come from preexisting cells
3
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Compare and contrast the characteristics of prokaryotic and eukaryotic cells in the following
table:
- Prokaryotic: Lack membrane enclosed organelles
1
- Has DNA
- Made of four kingdoms
- Fungi,
- Plasma membrane and ribosomes
- Eukaryotic: Have membrane enclosed organelles
- Double membrane
- Bigger than prokaryotes
- have external cell wall or internal cytoskeleton for support
- Mitochondria is found in both animal and plant cells
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What are cells:
o Modern biological classification of organisms are based on:
Obvious similarities
Evolutionary relationships
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