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A-LevelBiologyCell membranes and transport9700/12 · Oct/Nov 2009 · Q171 Mark

Cystic fibrosis is a disease where Cl¯ ions are unable to be transported into cells. Which structure in the cell surface membrane is faulty? [Diagram of a cell surface membrane with parts A, B, C, D labelled]

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.

A[Structure A in diagram]
B[Structure B in diagram]
C[Structure C in diagram]
D[Structure D in diagram]

✓ Correct answer

C: [Structure C in diagram]

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About this question

Topic
Cell membranes and transport, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source
A-Level Biology, Oct/Nov 2009 Paper 1 Variant 2, question 17.

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