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1.3 Transport in cells

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Question 23

A wilted celery stalk is placed in distilled water. After two hours, the stalk is firm again.

Which statement explains why the celery stalk becomes firm again?

[1]
A

Water enters the celery cells by osmosis from a more dilute solution, so the cells become turgid.

B

Water enters the celery cells by osmosis from a more concentrated solution, so the cells become turgid.

C

Dissolved sugars diffuse out of the celery cells into the water, so the cells become turgid.

D

Water is moved into the celery cells by active transport using energy from respiration, so the cells become turgid.

Markscheme

1.3 Transport in cells Questions

  1. GCSE
  2. /Biology
  3. /1.3 Transport in cells

140 exam-style questions on AQA GCSE Biology 1.3 Transport in cells, covering 1.3.1 Diffusion, 1.3.2 Osmosis, and 1.3.3 Active transport. Each one has a worked solution and a mark scheme showing where the marks go.

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