Biology · Cell Biology
When an organism's cell is shifted from 37°C to 4°C, which biological alteration in the plasma membrane composition would best help the cell maintain its membrane fluidity at lower temperatures?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1An increase in the overall concentration of membrane-spanning proteins
- 2A significant decrease in phospholipid polar head groups
- 3A regulated increase in cholesterol content to prevent crystallization✓
- 4An increase in the percentage of saturated fatty acids
Correct answer
A regulated increase in cholesterol content to prevent crystallization
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