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Questions and Answers
Which microbe demonstrates the highest resistance?
Which microbe demonstrates the highest resistance?
- Enveloped viruses
- Fungal spores
- Prions (correct)
- Pseudomonas sp.
Which microbe shows moderate resistance?
Which microbe shows moderate resistance?
- Fungal spores
- Mycobacterium tuberculosis (correct)
- Bacterial vegetative cells
- Protozoan trophozoites
What is the least resistant microbial form?
What is the least resistant microbial form?
- Enveloped viruses
- Protozoan trophozoites (correct)
- Fungal spores
- Bacterial endospores
Which microbial form is characterized by permanent loss of reproductive capability?
Which microbial form is characterized by permanent loss of reproductive capability?
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What makes microbial death hard to detect?
What makes microbial death hard to detect?
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Study Notes
Microbial Resistance
- Spores demonstrate the highest resistance to environmental stresses and chemicals.
- Vegetative cells show moderate resistance.
Microbial Forms
- Viruses are the least resistant microbial form, as they are highly sensitive to environmental factors and chemicals.
- Lethal mutations are characterized by permanent loss of reproductive capability.
Microbial Death
- Microbial death is hard to detect due to the inability to distinguish between dormant and dead cells, as well as the presence of viable but non-culturable cells.
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