A-Level Biology OCR A
Cholesterol Fluidity Phospholipids Bilayer Preventing End Interacts Explain
| Front |
Explain how cholesterol affects the fluidity and stability of membranes. |
| Back |
Effect of cholesterol on membranes:- Chol molecules are positioned between phospholipids in the bilayer preventing them from aligning too closely together and therefore preventing solidification - maintains fluidity
- Hydrophilic end interacts with the heads and hydrophobic end interacts with tails, pulling them together - stabilises bilayer as it is attracted to the phospholipids
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A-Level Biology OCR A