A-LevelBiologyTransport in plantsMay/June 2014Paper 1 Q241 Mark
The diagram represents part of the phloem pathway, with adjacent cells, from leaves to the root of a plant. [Figure 24.1] Which process is occurring between 1 to 2 and what is the effect on the water potential at 2?
Aprocess from 1 to 2: active transport of sucrose, water potential at 2: becomes less negative
Bprocess from 1 to 2: active transport of sucrose, water potential at 2: becomes more negative
Cprocess from 1 to 2: diffusion of sucrose, water potential at 2: becomes less negative
Dprocess from 1 to 2: diffusion of sucrose, water potential at 2: becomes more negative
✓ 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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