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

20. Adaptive Immunity

Regulatory T Cells

Microbiology

20. Adaptive Immunity

Regulatory T Cells

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Multiple Choice

Which of the following is NOT a function of regulatory T cells?

Regulatory T cells contain receptors that remove cytokines required for the growth and proliferation of effector cells.

Regulatory T cells induce apoptosis of effector cells via perforin and granzyme.

Regulatory T cells secret cytokines that reduce the signaling activity of effector T cells.

Regulatory T cells interact with MHC class I APCs and inhibit their maturation.

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Verified step by step guidance

Understand the role of regulatory T cells (Tregs) in the immune system. They are crucial for maintaining immune tolerance and preventing autoimmune diseases by suppressing the activation and proliferation of other immune cells.

Review the mechanisms by which regulatory T cells exert their suppressive functions. These include the secretion of inhibitory cytokines, direct cell-to-cell contact, and modulation of antigen-presenting cells (APCs).

Examine the options provided in the problem. Identify which functions are typically associated with regulatory T cells. For example, Tregs are known to secrete cytokines like IL-10 and TGF-beta to suppress effector T cell activity.

Consider the interaction of regulatory T cells with APCs. Regulatory T cells usually interact with MHC class II molecules on APCs, not MHC class I, which is primarily involved in presenting antigens to cytotoxic T cells.

Identify the statement that does not align with the known functions of regulatory T cells. In this case, the interaction with MHC class I APCs and inhibition of their maturation is not a recognized function of regulatory T cells.