Virus and Bacteria

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What is a virus?

Back

A virus is a tiny infectious agent that can only replicate inside the living cells of an organism. It is not considered a living organism because it cannot reproduce on its own.

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What is bacteria?

Back

Bacteria are single-celled microorganisms that can be found in various environments. They are prokaryotic, meaning they do not have a nucleus.

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What does unicellular mean?

Back

Unicellular means consisting of a single cell. Bacteria are unicellular organisms.

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What is a pathogen?

Back

A pathogen is anything living or nonliving that can cause a disease, including viruses, bacteria, fungi, and parasites.

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What is a vaccine?

Back

A vaccine is a substance that is used to prevent viral diseases by stimulating the body's immune response.

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What is the difference between a virus and bacteria?

Back

Viruses require a host cell to replicate and are not considered living, while bacteria are living organisms that can reproduce on their own.

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What is the shape of coccus bacteria?

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Coccus bacteria are spherical in shape.

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What is the shape of bacillus bacteria?

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Bacillus bacteria are rod-shaped.

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What is the shape of spiral bacteria?

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Spiral bacteria are twisted or corkscrew-shaped.

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What is an antibiotic?

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An antibiotic is a type of medicine that fights bacterial infections by killing bacteria or inhibiting their growth.