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

Functions of T Lymphocytes

Microbiology

20. Adaptive Immunity

Functions of T Lymphocytes

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Multiple Choice

Which type of helper T cells are involved in fighting extracellular pathogens?

T $_H$ 1.

T $_H$ 2.

T $_H$ 17.

A and B.

B and C.

All types of helper T cells help fight extracellular pathogens.

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Verified step by step guidance

Understand the role of helper T cells: Helper T cells are a subset of T cells that play a crucial role in the immune system by activating and directing other immune cells.

Identify the types of helper T cells: The main types are TH1, TH2, and TH17, each with distinct functions in immune responses.

Focus on TH2 and TH17 cells: TH2 cells are primarily involved in fighting extracellular pathogens by stimulating B cells to produce antibodies. TH17 cells also contribute to the defense against extracellular pathogens by recruiting neutrophils and promoting inflammation.

Consider the context of extracellular pathogens: Extracellular pathogens are those that exist outside cells, such as bacteria and parasites, which require a specific immune response involving TH2 and TH17 cells.

Conclude with the correct types: Based on their roles, TH2 and TH17 cells are the types of helper T cells involved in fighting extracellular pathogens, as they coordinate the immune response to these threats.