A-LevelBiologyTransport in plantsMay/June 2016Paper 1 Q251 Mark
The diagram shows the results of an experiment on transpiration using two different leaves. Each leaf was left on a balance in daylight in a closed room and its mass recorded at 1 hour intervals. [Figure 25.1] Which conclusions could be correct? 1 The loss of mass is mainly due to evaporation of water. 2 Most stomata close in both leaves after 1 hour. 3 Leaf 1 has a larger surface area than leaf 2. 4 Leaf 1 has a thicker cuticle than leaf 2.
A1, 2, 3 and 4
B1, 2 and 4 only
C2 and 3 only
D3 and 4 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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