Fe<sup>2+</sup> is a cofactor of:
Correct answer: A. Chrome oxidase
- A. Chrome oxidase
- B. Carbonic anhydrase
- C. Glucose 6-phosphatase
- D. Both a and b
Explanation
Chrome oxidase, also known as cytochrome e oxidase, is an enzyme found in the mitochondrial membrane, It is the last enzyme in the respiratory electron transport chain and plays a pivotal role incellular respiration. The enzyme contains iron (Fe) as a part of its heme groups, which ar= essentialfor its function The iron ions facilitate the transfer of electrons from gyrochrome c to oxygen, thefinal electron acceptor, resulting in the formation of water. This process is crucial for the production of ATP, the energy currency of the cell.
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Proteins are classified by shape, composition and structure, from primary amino acid sequence to secondary, tertiary and quaternary organisation, and their biological roles are linked to this structure. Enzymes are examined as protein biocatalysts, including active sites, substrate specificity, activation energy, cofactors and factors affecting activity.
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