Title: Cell:%20Smallest%20Unit%20of%20Life
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2Cell Smallest Unit of Life
3http//www.cellsalive.com/howbig.htm
4 How Life is Organized
Eukaryotic Cell Plan
Prokaryotic Cell Plan
5 Comparison of Cell Types
Note - Size, scale, internal organization of each
6Scale of Life
Cells are limited in size because of surface area
to volume ratio
What is the biggest cell in the human body?
7Prokaryotic Cell Structure
- Lacking well defined nuclei or organelles
- Variety of shapes and sizes
8Variety of Shapes and Sizes Prokaryotic
9Compartmentalization of Eukaryotic Cells
Many small enclosed environments to create
environments for unique chemical reactions. Note
the continuous flow of membranous
compartments Endomembrane system- internal
system of membrane bound compartments
10Animal Cell
11Plant Cell
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