Penicillin blocks the active sites of an enzyme that many bacteria use in making cell walls. It is an example of:
Correct answer: A. Competitive inhibition
- A. Competitive inhibition
- B. Noncompetitive inhibition
- C. Feedback inhibition
- D. Radiation effect
Explanation
Option B should be non competitive inhibition instead of incompetitive inhibition.Option A: Competitive inhibition: Many antibiotic are inhibitors of specific enzyme in bacteria e.g. penicillin blocks the active site of an enzyme that many bacteria use tomade cell-walls. These antibiotics are example of competitive inhibition. Hence, this option is correct.
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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.
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