The diagram illustrates a xerophytic leaf under two different conditions, P and Q. Which of the following statements about the cells in layer X of the leaf in conditions P and Q are correct? 1. water potential in P is less negative than in Q 2. the cells may be turgid in P and plasmolysed in Q 3. cells are less turgid in P than in Q 4. there is no net diffusion of water into X in either P or Q
- A1, 2, 3 and 4
- B1, 2 and 4 only
- C1 and 4 only
- D2 and 3 only