PATHOLOGY MCQ
INFECTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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viruses digest nutrients for energy that would have been used by host cells
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the proteins in viral capsids interfere with the enzymes that produce antibodies
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host cells are damaged during the production of new virus particles
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viruses produce harmful toxins that interfere with the cells energy conversions
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Detailed explanation-1: -There are six basic stages in the virus replication cycle: attachment, penetration, uncoating, replication, assembly, and release. A viral infection may be productive, resulting in new virions, or nonproductive, meaning the virus remains inside the cell without producing new virions.
Detailed explanation-2: -A virus must use cell processes to replicate. The viral replication cycle can produce dramatic biochemical and structural changes in the host cell, which may cause cell damage. These changes, called cytopathic (causing cell damage) effects, can change cell functions or even destroy the cell.
Detailed explanation-3: -Helper T cells play a critical role in our immune systems, helping us fend off infections from bacteria and fungi. They are also the host cell for HIV, and the loss of these important cells can lead to AIDS.