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1. Introduction to Microbiology3h 22m
2. Disproving Spontaneous Generation1h 18m
3. Chemical Principles of Microbiology3h 38m
4. Water1h 28m
5. Molecules of Microbiology2h 23m
6. Cell Membrane & Transport3h 28m
7. Prokaryotic Cell Structures & Functions5h 52m
8. Eukaryotic Cell Structures & Functions2h 18m
9. Microscopes2h 46m
10. Dynamics of Microbial Growth4h 36m
11. Controlling Microbial Growth4h 10m
12. Microbial Metabolism5h 16m
13. Photosynthesis2h 31m
14. DNA Replication2h 25m
15. Central Dogma & Gene Regulation7h 14m
16. Microbial Genetics4h 44m
17. Biotechnology3h 0m
18. Viruses, Viroids, & Prions4h 56m
19. Innate Immunity7h 15m
20. Adaptive Immunity7h 14m
21. Principles of Disease6h 57m

12. Microbial Metabolism

Enzyme Inhibition

Microbiology

12. Microbial Metabolism

Enzyme Inhibition

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Multiple Choice

Which of the following statements correctly describes competitive inhibition?
a) A competitive inhibitor binds to the substrate and inhibits it from binding to the active site of the enzyme.
b) A competitive inhibitor binds to a site other than the active site and inhibits the substrate from binding.
c) A competitive inhibitor binds to the active site and degrades the enzyme.
d) A competitive inhibitor binds to the active site of an enzyme and inhibits the substrate to bind.

A competitive inhibitor binds to the substrate and inhibits it from binding to the active site of the enzyme.

A competitive inhibitor binds to a site other than the active site and inhibits the substrate from binding.

A competitive inhibitor binds to the active site and degrades the enzyme.

A competitive inhibitor binds to the active site of an enzyme and inhibits the substrate to bind.

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Verified step by step guidance

Understand the concept of competitive inhibition: In competitive inhibition, an inhibitor molecule competes with the substrate for binding to the active site of the enzyme.

Identify the role of the active site: The active site is the specific region of the enzyme where the substrate binds. In competitive inhibition, the inhibitor binds to this same site.

Analyze the options: Evaluate each statement to determine if it describes the competitive inhibition mechanism, focusing on whether the inhibitor binds to the active site.

Eliminate incorrect options: Discard options that suggest the inhibitor binds elsewhere (not the active site) or that it degrades the enzyme, as these do not describe competitive inhibition.

Select the correct statement: Choose the option that accurately describes the inhibitor binding to the active site and preventing substrate binding, which is the hallmark of competitive inhibition.