BIOLOGICAL CLASSIFICATION
VIRUSES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Viruses can reproduce on their own
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Viruses need a host cell to reproduce
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Viruses live in host cells, but do not use their machinery to reproduce
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None of the above
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Detailed explanation-1: -Viruses are microscopic, non-cellular means they lack cellular structure. They can not reproduce on their own without their host cell. A virus can not replicate outside the living cell.
Detailed explanation-2: -A virus cannot replicate alone; instead, it must infect cells and use components of the host cell to make copies of itself. Often, a virus ends up killing the host cell in the process, causing damage to the host organism. Well-known examples of viruses causing human disease include AIDS, COVID-19, measles and smallpox.
Detailed explanation-3: -All viruses are obligate parasites; that is, they lack metabolic machinery of their own to generate energy or to synthesize proteins, so they depend on host cells to carry out these vital functions.
Detailed explanation-4: -Viruses are smaller than the bacteria. Viruses consists of a genetic material (DNA or RNA) as well as a protein coat. Viruses require the host cell to reproduce. They are inactive outside the host cell.
Detailed explanation-5: -Viruses reproduce inside a host cell.