The diagram shows an apparatus arranged to examine how altering the concentration of glucose in the surrounding solution affects the movement of molecules across a selectively permeable membrane (Visking tubing) over 15 minutes. As the concentration of glucose solution in the surrounding solution rises, which statements are correct?
- A1, 2, 3 and 4
- B1, 2 and 4 only
- C1 and 3 only
- D2 and 3 only