Biology 9700 · AS & A Level · Fluid mosaic membranes

Fluid mosaic membranes — practice question

In plants that are adapted to low temperatures, the cell surface membranes alter as the temperature falls, which enables the plants to perform exocytosis. Which alteration takes place in their cell surface membranes?

  • Aa decrease in the ratio of proteins to saturated phospholipids
  • Ba decrease in the ratio of unsaturated phospholipids to saturated phospholipids
  • Can increase in the ratio of proteins to unsaturated phospholipids
  • Dan increase in the ratio of unsaturated phospholipids to saturated phospholipids

Worked solution & mark scheme

This 1-mark question has a full step-by-step worked solution and mark scheme.

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI