Cambridge IGCSE Biology practice

Paper 3 structured question: Anaerobic respiration

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Topic

Anaerobic respiration

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Paper 3Theory (Core)1 marks

Anaerobic respiration occurs in muscles during intense exercise when oxygen supply is limited.

Description

During intense exercise, muscles respire anaerobically to produce energy. This process converts glucose into lactic acid.

a
State the word equation for anaerobic respiration in muscles.
Your answer
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[1]

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Paper 3Theory (Core)1 marks

Description

Muscles produce energy anaerobically by converting glucose into lactic acid when oxygen is scarce.

a
State the word equation for anaerobic respiration in muscles during intense exercise.
Your answer
Aim for approximately 1 distinct marking point.
[1]