PATHOLOGY MCQ
IMMUNE RESPONSE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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viruses can’t grow and develop on their own
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viruses can’t obtain or use energy
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viruses must infect a host cell in order to replicate
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viruses are able to change over time / evolve
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Detailed explanation-1: -Many scientists argue that even though viruses can use other cells to reproduce itself, viruses are still not considered alive under this category. This is because viruses do not have the tools to replicate their genetic material themselves.
Detailed explanation-2: -Viruses also lack the properties of living things: They have no energy metabolism, they do not grow, they produce no waste products, and they do not respond to stimuli. They also don’t reproduce independently but must replicate by invading living cells.
Detailed explanation-3: -Viruses need to invade a host cell because viruses don’t have the capability to reproduce, so they replicate themselves inside the host cell.
Detailed explanation-4: -Viruses are classified on the basis of morphology, chemical composition, and mode of replication.