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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

18. Viruses, Viroids, & Prions

Introduction to Viruses

Microbiology

18. Viruses, Viroids, & Prions

Introduction to Viruses

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Multiple Choice

Which component of a virus allows the virus to bind to and enter the host cell?

Nucleocapsid.

Viral envelope.

Matrix proteins.

Spike proteins.

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Verified step by step guidance

Understand that viruses need to attach to host cells to initiate infection. This attachment is facilitated by specific structures on the virus surface.

Identify the role of spike proteins, which are glycoproteins protruding from the viral envelope, in the attachment process.

Recognize that spike proteins interact with specific receptors on the surface of the host cell, allowing the virus to bind to the cell.

Learn that after binding, spike proteins often undergo conformational changes that facilitate the fusion of the viral envelope with the host cell membrane.

Conclude that the spike proteins are crucial for both the attachment and entry of the virus into the host cell, making them a key component in the infection process.