NEET Previous Year Question

Which one of the following statement is incorrect?

Topic: NEET PYQ

Answer: D. Full step-by-step solution below.

  1. AA competitive inhibitor reacts reversibly with the enzyme to form an enzyme inhibitor complex
  2. BIn competitive inhibition, the inhibitor molecule is not chemically change by the enzyme
  3. CThe competitive inhibitor does not affect the rate of breakdown of the enzyme subtract complex
  4. DThe present of the competitive inhibitor decreases the Km of the enzyme for the substrate.

Correct answer: D

Solution

(d) In competitive inhibition:
Inhibitor competes with substrate for the active site.
Its effect can be overcome by increasing substrate concentration.
Km increases, while Vmax remains unchanged.

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