MHT CET · Chemistry · Surface Chemistry

Identify the enzyme that catalyses the reaction of \(\mathrm{CO}_{2}\) with water in human body?

A Ferroxidase
B Catalase
C Nitrogenase
D Carbonic anhydrase

Verified Solution

Answer & Solution

Correct Answer

(A) Ferroxidase

Step-by-step Solution

Detailed explanation

Carbonic anhydrase
In the human body, the carbonic anhydrase enzyme catalyses the reaction of \(\mathrm{CO}_{2}\) with water. It catalyses a reaction that converts \(\mathrm{CO}_{2}\) and water into carbonic acid, which dissociates into protons and bicarbonate ions. It is found in red blood cells.
\(\mathrm{CO}_{2}+\mathrm{H}_{2} \mathrm{O} \stackrel{\text { Carbonic anhydrase }}{\longrightarrow} \mathrm{H}_{2} \mathrm{CO}_{3}\)
\(\mathrm{CO}_{2}\) is transported from tissues to the lungs through the bloodstream.

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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