Identify the enzyme ' $\mathrm{X}$ ' in the following reaction. $\mathrm{H}_{2} \mathrm{O}_{2}(\mathrm{aq})…

Identify the enzyme ' $\mathrm{X}$ ' in the following reaction. $\mathrm{H}_{2} \mathrm{O}_{2}(\mathrm{aq}) \stackrel{\mathrm{x}}{\longrightarrow} \mathrm{H}_{2} \mathrm{O}_{(\mathrm{l})}+\frac{1}{2} \mathrm{O}_{2}(\mathrm{~g})$
  1. amylase
  2. ferroxidase
  3. Catalase
  4. carbonic anhydrase

Solution

Catalase
$\textbf{Explanation:}$
Catalase enzyme used in this reaction.
\(\mathrm{H}_2 \mathrm{O}_2(\mathrm{aq}) \xrightarrow{\text { Catalase }} \mathrm{H}_2 \mathrm{O}(\mathrm{l})+\frac{1}{2} \mathrm{O}_2(\mathrm{~g})\)
It is a widespread enzyme that catalyses the breakdown of hydrogen peroxide (0) to water and oxygen in practically all living organisms exposed to oxygen. It is a crucial enzyme in the protection of the cell against oxidative damage caused by reactive oxygen species.

Asked in: MHT CET 2020 (19 Oct Shift 2)

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