Moderate

Penicillin, an antibiotic inhibits bacterial growth. It is categorized as:

Correct answer: B. Competitive inhibitors

  • A. Irreversible inhibitors
  • B. Competitive inhibitors
  • C. Non-competitive inhibitors
  • D. Reversible inhibitors

Explanation

Penicillin is a competitive inhibitor. Other competitive inhibitors include antibodies, antimetabolites, iodoacetate, malonate and CoA (high concentration).

Last updated

About Enzymes

Enzymes are biological catalysts that lower activation energy without being consumed, and their specificity is explained by the lock and key and induced fit models. Work includes the effects of temperature, pH and substrate concentration on reaction rate, plus competitive and non-competitive inhibition and how these differ.

Practise Enzymes

633 free Enzymes MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.

Exams that ask Biology questions like this

Biology is on 6 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.

Related questions