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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
25. Epidemiology2h 24m

1. Introduction to Microbiology

Acellular Infectious Agents: Viruses, Viroids & Prions

Microbiology

1. Introduction to Microbiology

Acellular Infectious Agents: Viruses, Viroids & Prions

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Multiple Choice

This type of acellular infectious agent is only known to infect plants and is a small, circular, single-stranded nucleic acid molecule.

Archaea.

Prion.

Virus.

Viroid.

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Identify the characteristics of the infectious agent described in the problem: it is acellular, infects plants, and consists of a small, circular, single-stranded nucleic acid molecule.

Understand the nature of acellular infectious agents: these include viruses, viroids, and prions, each with distinct characteristics.

Recognize that viroids are known for infecting plants and are composed solely of a short strand of circular, single-stranded RNA without a protein coat.

Differentiate viroids from other acellular agents: viruses have a protein coat and can infect various organisms, prions are infectious proteins affecting animals, and archaea are cellular organisms.

Conclude that the description matches a viroid, as it specifically infects plants and consists of a single-stranded nucleic acid without a protein coat.