Competitive inhibition of an enzyme:

A Changes the enzyme shape permanently

B Is overcome by increasing substrate concentration because the inhibitor competes for the active site

C Cannot be reversed

D Decreases Vmax

✓ Correct Answer: Option B

Competitive inhibitor binds active site. Increasing [S] outcompetes it. Vmax unchanged; apparent Km increases.

💡 Why is B) the correct answer?

The correct answer to the question "Competitive inhibition of an enzyme:" is Option B: Is overcome by increasing substrate concentration because the inhibitor competes for the active site.

The other options — A) Changes the enzyme shape permanently, C) Cannot be reversed, D) Decreases Vmax — are incorrect for this DAT Exam Prep question. As explained above: Competitive inhibitor binds active site. Increasing [S] outcompetes it. Vmax unchanged; apparent Km increases.

📚 About This DAT Exam Prep Practice Question

This 2-level DAT Exam Prep question from the Biology topic is part of BrainForge Quiz's free exam preparation library. Each question includes the correct answer and a detailed explanation to help you understand the underlying concept, not just memorize the answer.

How to use this page: Read the question above, consider all four options (A through D), then check the highlighted correct answer and explanation. For active timed practice, start a free DAT Exam Prep practice test or use flashcards for spaced repetition review.

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Competitive inhibition of an enzyme:

✓ Correct Answer: Option B

📚 About This DAT Exam Prep Practice Question

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