Biology · Enzymes
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Penicillin blocks the active sites of an enzyme that many bacteria use in making cell walls. It is an example of:
- A
Competitive inhibition
- B
Noncompetitive inhibition
- C
Feedback inhibition
- D
Radiation effect
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.
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.
Noncompetitive inhibition: In noncompetitive inhibition, the inhibitor binds to a site other than the active site, known as the allosteric site. Incompetitive inhibitors include acetaldehyde, di-isopropyl fluorophosphate (DFP-—nerve gas), mercury, silver, copper, and cyanide.
Feedback inhibition is a process in which the reaction is controlled by the end product.
Radiation effect is a process in which enzymes are inactivated rapidly by exposure to ultraviolet light and also to ß, γ, and X-rays, because it alters the shape of protein, i.e., enzymes.
Tagged under Biology · Enzymes · 2023