Biology 9700 · AS & A Level · Fluid mosaic membranes

Fluid mosaic membranes — practice question

Which statement regarding phospholipids in the bilayer of a cell surface membrane is correct?

  • AThe non-polar phosphate heads face outwards and the polar fatty acid tails face inwards.
  • BThe polar phosphate heads face outwards and the non-polar fatty acid tails face inwards.
  • CThe non-polar fatty acid tails face outwards and the polar phosphate heads face inwards.
  • DThe polar fatty acid tails face outwards and the non-polar phosphate heads face inwards.

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