A-LevelBiologyTransport in plantsOct/Nov 2019Paper 1 Q261 Mark
What is a definition of transpiration?
Athe evaporation of water vapour from a leaf due to the diffusion of water from an area of low water potential to high water potential
Bthe loss of water vapour from a plant to its environment by diffusion down a water potential gradient
Cthe movement of water from root to leaf due to the adhesion of water molecules to one another
Dthe uptake of water by plant roots by movement of water down a continuous water potential gradient from air to soil
✓ 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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