NURSING EXAM QUESTIONS
MICROBIOLOGY
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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naked viruses
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protozoan cysts
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fungal spores
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bacterial endospores
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Detailed explanation-1: -Endospores are considered the most resistant structure of microbes. They are resistant to most agents that would normally kill the vegetative cells they formed from.
Detailed explanation-2: -Except for prions, bacterial spores possess the highest innate resistance to chemical germicides, followed by coccidia (e.g., Cryptosporidium), mycobacteria (e.g., M.
Detailed explanation-3: -Prions are the most resistant to control measures, and enveloped viruses are the least resistant.
Detailed explanation-4: -A variety of different microorganisms form “spores” or “cysts", but the endospores of low G+C Gram-positive bacteria are by far the most resistant to harsh conditions.
Detailed explanation-5: -Different groups of bacteria vary in their susceptibility to biocides, with bacterial spores being the most resistant, followed by mycobacteria, then Gram-negative organisms, with cocci generally being the most sensitive.