Cell Membrane

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Functions
- Boundary- separates interior for outer atmosphere
- Regulating- what comes in and goes out
- Regulates chemical environment- maintain homeostasis
Selectively Permeable Membrane

only some molecules can pass through
CAN Pass Through
- non-polar molecules(CO₂, oxygen)
- uncharged molecules
- small molecules(water)
CANNOT pass through
- polar molecules(sugar)
- charged molecules
- large molecules
Cholesterol
- temperature determines fludity
- warmer= cannot move
- cooler= can move
- located withing tails

Author

243058

Card Set

Cell Membrane

Description

Cell Membrane

Updated

2013-10-27T02:40:25Z

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