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AQA · GCSE · Chemistry · Higher

Biological catalyst terminology

Q02.4 1 mark

Catalysts affect the rate of reactions.

What are catalysts in biological systems called?

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Marking points

  1. 1 Names enzymes.

Full-mark answer

They are called enzymes.

Why this answer loses marks

They are microorganisms.

This names living things, not the class of substance that acts as a biological catalyst.