Cambridge IGCSE Biology practice

Paper 3 structured question: Osmosis

Try the question first, then check the answer and practise the same topic again.

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Paper

Marks

Topic

Osmosis

Exam-style question

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Paper 3Theory (Core)2 marks

Effect of water pressure on plant support.

Description

Plants wilt when they lose water and the pressure inside their cells decreases.

a
Identify why plants wilt when they lose water.
Your answer
Aim for approximately 2 distinct marking points.
[2]

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Paper 3Theory (Core)1 marks

Description

Plants are supported by the pressure of water inside their cells pushing against the cell wall.

a
State what provides support to plants by pushing against the cell wall.
Your answer
Aim for approximately 1 distinct marking point.
[1]