Plasma membranes Flashcards
1
Q
Describe two roles of a cell surface membrane
A
- barrier between cell contents and environment
- cell to cell signalling
2
Q
Does the effect of cholesterol depend on temperature?
A
Yes
3
Q
At low temperatures what affect does cholesterol have on the fluidity of the membrane?
A
increases fluidity
4
Q
At high temperatures what affect does cholesterol have on the fluidity of the membrane?
A
decreases fluidity
