Table of contents

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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

20. Adaptive Immunity

Classes of Antibodies

Microbiology

20. Adaptive Immunity

Classes of Antibodies

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Multiple Choice

_______ is the immunoglobulin class that neutralizes viruses in the intestinal tract.

IgG.

IgA.

IgD.

IgE.

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Verified step by step guidance

Understand the role of immunoglobulins (antibodies) in the immune system. They are proteins produced by B cells that help neutralize pathogens like bacteria and viruses.

Learn about the different classes of immunoglobulins: IgA, IgD, IgE, IgG, and IgM, each with distinct functions and locations in the body.

Focus on IgA, which is primarily found in mucosal areas such as the gut, respiratory tract, and urogenital tract, as well as in secretions like saliva, tears, and breast milk.

Recognize that IgA plays a crucial role in mucosal immunity by neutralizing pathogens and preventing their attachment and entry into epithelial cells, particularly in the intestinal tract.

Conclude that IgA is the immunoglobulin class responsible for neutralizing viruses in the intestinal tract, making it the correct answer to the problem.