(a)[2]
State what the term fluid mosaic means.
(b)[1]
State how thick a cell surface membrane is.
(c)[4]
List four features of eukaryotic cell surface membranes that cannot be seen in Fig. 6.1.
Biology 9700 · AS & A Level · Transport mechanisms
Transport mechanisms — practice question
Fig. 6.1 presents a partially completed diagram of the fluid mosaic model of membrane structure. It depicts the cell surface membrane of a eukaryotic cell.
Worked solution & mark scheme
This 7-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Membrane called fluid because phospholipids and proteins can move” …
- Full mark scheme, point by point
- Step-by-step worked solution
- Write your answer & get it marked instantly by AI