A-LevelBiologyCell membranes and transportOct/Nov 2018Paper 1 Q41 Mark
The removal of a plant cell wall by enzyme digestion leaves an intact membrane-bound structure called a protoplast. Which statement explains why protoplasts are easily damaged?
AMitochondria stop producing ATP to maintain membrane integrity.
BNet movement of water is no longer limited by turgor.
CSecretory vesicles are unable to fuse with the cell surface membrane.
DThe shape of the cell structures is changed by the loss of cell shape.
✓ Correct Answer
The correct answer is B. 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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