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HL B2.1 Membrane Fluidity
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Total cards: 6•Content version: v3•Public deck•Updated: 8/1/2026
Card preview (6)
#1
Front (Question)
What affects membrane fluidity?
Back (Answer)
Fatty acid saturation and cholesterol content.
#2
Front (Question)
Effect of saturated fatty acids?
Back (Answer)
Straight tails → rigid membrane.
#3
Front (Question)
Effect of unsaturated fatty acids?
Back (Answer)
Bent tails → increase fluidity, resist compression.
#4
Front (Question)
Role of cholesterol?
Back (Answer)
Buffers fluidity, stabilizes membrane in temperature fluctuations.
#5
Front (Question)
Adaptation of cold-blooded animals in cold?
Back (Answer)
Higher proportion of unsaturated fatty acids to maintain fluidity.
#6
Front (Question)
Adaptation of warm-blooded animals?
Back (Answer)
More polyunsaturated fatty acids for highly fluid membranes.