Which of the following statements about enzymes are correct?

Chemistry Biomolecules All Topic Question for Revision Test Single Correct MCQ

Published on: August 13, 2026

Enzymes lack in nucleophilic groups.
A, B and E only

Pepsin is proteolytic enzyme.
A and B only

Enzymes catalyze chemical reactions by lowering the activation energy.
C and E only

Enzymes are highly specific both in binding chiral substrates and in catalyzing their reactions.
(E) Enzymes are needed in large quantity for the progress of a reaction.
Choose the correct answer from the options given below. B, C and D only

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The correct answer is:

Among the given statements, only B, C and D are correct while A and E are incorrect about

enzymes. Their correct form are

• Enzymes are protein molecules which have plenty of groups like that can act as nucleophiles.

• Enzymes are needed only in small quantities for the progress of a reaction.

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