A-LevelBiologyTransport in plantsOct/Nov 2017Paper 1 Q271 Mark
The diagram shows a xerophytic leaf in different conditions, P and Q. [Figure 27.1 - diagrams of xerophytic leaves in conditions P and Q] Which statements about the cells in layer X of the leaf in each of the conditions P and Q are correct? 1 less negative water potential in P than Q, 2 cells may be turgid in P and plasmolysed in Q, 3 cells less turgid in P than Q, 4 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
✓ Correct Answer
The correct answer is B. This question tests the candidate's understanding of transport in plants within the Biologysyllabus. The examiner's mark scheme requires...
📋 Examiner Report & Trap Analysis
Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
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