A-LevelBiologyCell membranes and transportOct/Nov 2010Paper 1 Q271 Mark
The diagram shows the water potential (Y) in some plant cells and in their environment. [Figure 27.1 showing three plant cells and environment with water potential values] Which statements are correct for this situation? 1 Water moves into and out of all three cells. 2 There is a net movement of water into cell 1. 3 There is no movement of water from the environment to cell 2. 4 Water moves out of cell 3 so it becomes plasmolysed.
A1 and 2
B1 and 3
C2 and 4
D3 and 4
✓ Correct Answer
The correct answer is A. This question tests the candidate's understanding of cell membranes and transport 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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