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A-LevelBiologyCell membranes and transportOct/Nov 2011Paper 1 Q161 Mark

The cell surface membranes of plants adapted to cold conditions change as the weather gets colder, allowing the plants to carry out exocytosis. Which change occurs?

Adecrease in the ratio of proteins to saturated phospholipids
Bdecrease in the ratio of unsaturated phospholipids to saturated phospholipids
Can increase in the ratio of proteins to unsaturated phospholipids
Dan increase in the ratio of unsaturated phospholipids to saturated phospholipids

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The correct answer is D. This question tests the candidate's understanding of cell membranes and transport within the Biologysyllabus. The examiner's mark scheme requires...

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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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About This A-Level Biology Question

This multiple-choice question appeared in the Cambridge A-Level Biology (9700) Oct/Nov 2011 examination, Paper 1 Variant 2. It tests the topic of Cell membranes and transport and is worth 1 mark.

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