Table of contents

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

Negative & Positive Feedback

Microbiology

12. Microbial Metabolism

Negative & Positive Feedback

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Multiple Choice

Which of the following is TRUE about feedback inhibition?
a) Feedback inhibition has no physiological importance.
b) Multiple products are required for feedback inhibition.
c) Feedback inhibition of a pathway can only be accomplished by the products of that pathway.
d) Feedback inhibition involves products binding to the active site to prevent enzyme activity.

Feedback inhibition has no physiological importance.

Multiple products are required for feedback inhibition.

Feedback inhibition of a pathway can only be accomplished by the products of that pathway.

Feedback inhibition involves products binding to the active site to prevent enzyme activity.

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Verified step by step guidance

Understand the concept of feedback inhibition: Feedback inhibition is a regulatory mechanism where the end product of a metabolic pathway inhibits an enzyme involved in its synthesis, thus controlling the pathway's activity.

Evaluate option a: Feedback inhibition is crucial for maintaining homeostasis and regulating metabolic pathways, so the statement that it has no physiological importance is false.

Evaluate option b: Feedback inhibition typically involves a single end product inhibiting the pathway, not multiple products, making this statement false.

Evaluate option c: This statement is true because feedback inhibition is usually accomplished by the end product of the pathway inhibiting an enzyme earlier in the pathway.

Evaluate option d: Feedback inhibition generally involves the end product binding to an allosteric site, not the active site, to inhibit enzyme activity, making this statement false.