Fundamentholfundamenthol
NEET2025Biology
Q.

Which one of the following enzymes contains 'Haem' as the prosthetic group?

  1. A

    Catalase

  2. B

    RuBisCo

  3. C

    Carbonic anhydrase

  4. D

    Succinate dehydrogenase

Solution

In catalase (and peroxidase), which decompose HO into water and oxygen, haem is the prosthetic group and forms part of the enzyme's active site.

Carbonic anhydrase uses Zn as a cofactor; succinate dehydrogenase uses FAD (and Fe-S clusters); RuBisCO is itself an enzyme protein and is not haem-based.

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