JEE Main Chemistry question

Not in JEE Main or NEET syllabus

Identify the correct statement regarding enzymes.

(A)Enzymes can normally function at very high temperatures ()
(B)Enzymes are normally heterogeneous catalysts that are very specific in their action
(C)Enzymes are specific biological catalysts that cannot be poisoned
(D)Enzymes are specific biological catalysts that possess well defined active sitesCorrect

Answer: (D)

Solution

Enzymes are denatured and lose activity at high temperatures (their optimum is usually around 298–313 K), so (A) is false; most enzymes act in the same aqueous phase as the substrate, so they are not heterogeneous catalysts, making

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Question ID VK-144698