Chapter 7.3-7.4
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Created by:
jeanthebean on October 15, 2011
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4 terms
Terms | Definitions |
|---|---|
 Active Transport | the movement of chemical substances, usually across the cell membrane, against a concentration gradient; requires cell to use energy |
| Carrier Protein | a protein that transports substances across a cell membrane |
| Cell Membrane | a thin, flexible barrier that surrounds the cell |
| Cell Wall | provides support and protection for the cell; found in plants and some prokaryotes |
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