Cambridge IGCSE Combined Science practice

Paper 3 structured question: Respiration

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

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Paper

Marks

Topic

Respiration

Exam-style question

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Paper 3Theory (Core)1 marks

Aerobic respiration is a vital process for energy production in living organisms.

Description

In aerobic respiration, glucose and oxygen are converted into carbon dioxide and water, releasing energy.

a
Define the term aerobic respiration.
Your answer
Aim for approximately 1 distinct marking point.
[1]

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Paper 3Theory (Core)2 marks

Description

Aerobic respiration involves the breakdown of glucose with oxygen to produce energy, carbon dioxide, and water.

a
Explain the importance of oxygen in aerobic respiration.
Your answer
Aim for approximately 2 distinct marking points.
[2]