BIOLOGICAL CLASSIFICATION
VIRUSES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A virus has both DNA and RNA; a bacterium has only DNA
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A virus cannot reproduce on its own; a bacterium can
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A bacterium has organelles; a virus doesn’t
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a bacterium, can cause disease; a virus cannot
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Detailed explanation-1: -Viruses can’t reproduce on their own (unlike bacteria) so they aren’t considered ‘living’, but they can survive on surfaces for a varying level of time. Viruses are a non-living collection of molecules that need a host to survive.
Detailed explanation-2: -Specifically, they are pieces of genetic material (RNA or DNA) contained in a special coating of proteins called capsids. Viruses cannot replicate unless absorbed by cells in our body. Once a virus is outside the body, its capsid starts to degrade, and the more degraded its capsid is, the less likely it is to survive.
Detailed explanation-3: -A virus is not a living organism and can only grow and reproduce in the cells of a host. Bacteria, by contrast, are single-celled organisms that produce their own energy and can reproduce on their own. While both can cause disease, bacteria also serve other vital and healthful roles in nature.
Detailed explanation-4: -Virus: ↑ A type of microbe that can infects cells. Human viruses infect human cells, plant viruses infect plant cells, etc. Bacteriophage: ↑ A virus that infects bacteria, also called a phage. DNA: ↑ The molecule that carries all the information in the form of genes needed to produce proteins.
Detailed explanation-5: -Viruses are also microscopic but are different from other microorganisms. They, however, reproduce only inside the cells of the host organism, which may be a bacterium, plant or animal.