February/March 2026 Paper 12

2026 · 40 questions · 40 parts · 40 marks

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12Cell MembranesMedium1 mark
Membrane fluidity is affected by temperature and by the percentage of fatty acid tails in the phospholipid molecules that are saturated. Which combination of these two factors would result in the greatest membrane fluidity?
temperature / percentage of the fatty acid tails in the phospholipids that are saturated
A1080
B4020
C1020
D4080