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

18. Viruses, Viroids, & Prions

Animal Viruses: 1. Attachment to the Host Cell

Microbiology

18. Viruses, Viroids, & Prions

Animal Viruses: 1. Attachment to the Host Cell

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Multiple Choice

An antiviral drug specifically modifies viral receptors on a eukaryotic host cell. How might this affect the viral reproductive cycle?

It would stop the virus from attaching to the host cell.

It would facilitate the process of entry via endocytosis.

It would result in the uncoating of the viral DNA.

It would increase the production of viral proteins by the host cell.

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Verified step by step guidance

Understand the role of viral receptors: Viral receptors on host cells are specific proteins or molecules that viruses bind to in order to initiate infection. This binding is crucial for the virus to attach and enter the host cell.

Consider the effect of modifying viral receptors: If an antiviral drug modifies these receptors, it could potentially prevent the virus from recognizing and binding to the host cell, thereby inhibiting the initial step of the viral reproductive cycle.

Analyze the impact on viral attachment: Without proper attachment to the host cell, the virus cannot enter the cell to begin replication. This would effectively stop the virus from attaching to the host cell, preventing further steps in the viral life cycle.

Evaluate the possibility of endocytosis: If the modification of receptors somehow facilitates endocytosis, it could allow the virus to enter the cell more easily. However, this is less likely if the receptors are being blocked or altered to prevent viral entry.

Consider downstream effects: If the virus cannot attach and enter the host cell, subsequent steps such as uncoating of viral DNA and production of viral proteins by the host cell would not occur, as these processes depend on successful entry and replication of the virus.