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A-LevelBiologyCell membranes and transport9700/12 · Feb/Mar 2024 · Q181 Mark

The diagram shows how an artificial partially permeable membrane was used to separate a 5% sodium chloride solution and a 10% sodium chloride solution in a beaker. The two sides of the beaker were labelled R and S. [Figure 18.1] Which row correctly describes and explains what will happen in the half of the beaker labelled S?

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Adescription of S: volume of solution increases, explanation: net movement of water from a higher water potential to a lower water potential
Bdescription of S: volume of solution increases, explanation: net movement of water from a lower water potential to a higher water potential
Cdescription of S: volume of solution decreases, explanation: net movement of water from a higher water potential to a lower water potential
Ddescription of S: volume of solution decreases, explanation: net movement of water from a lower water potential to a higher water potential

✓ Correct answer

A: description of S: volume of solution increases, explanation: net movement of water from a higher water potential to a lower water potential

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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, Feb/Mar 2024 Paper 1 Variant 2, question 18.

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