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

Prions

Microbiology

18. Viruses, Viroids, & Prions

Prions

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Multiple Choice

Mad cow disease is a prion disease found in cattle. Why are prion diseases in meat a big concern?

Prions cannot be destroyed by cooking meat.

Prions cannot be destroyed with irradiation of meat.

Prions are the most difficult infectious agent to deactivate or denature.

There are no cures for prion diseases.

All of the above.

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Verified step by step guidance

Understand what prions are: Prions are misfolded proteins that can cause other proteins to also misfold, leading to disease. They are unique infectious agents because they do not contain nucleic acids like viruses or bacteria.

Explore why prions are resistant to common deactivation methods: Prions are extremely stable and resistant to heat, radiation, and chemical treatments, which makes them difficult to destroy using conventional methods such as cooking or irradiation.

Consider the implications of prion resistance: Since prions cannot be easily deactivated, they pose a significant risk when present in meat, as traditional food safety measures may not be effective in preventing transmission.

Examine the challenges in treating prion diseases: Currently, there are no effective treatments or cures for prion diseases, which makes prevention and control even more critical.

Conclude why prion diseases in meat are a concern: Given their resistance to deactivation, difficulty in treatment, and potential for transmission through consumption, prion diseases in meat are a significant public health concern.