Bacteria and Viruses

Front

What is a virus?

Back

A virus is a tiny infectious agent that invades a host cell and uses it to replicate itself.

Front

What are the shapes of viruses?

Back

Common shapes of viruses include crystal, sphere, and cylinder. Spirilla is NOT a shape of viruses.

Front

What is bioremediation?

Back

Bioremediation is the use of living organisms, like bacteria, to remove or neutralize contaminants from the environment.

Front

Give an example of bioremediation.

Back

Using bacteria to clean up an oil spill is an example of bioremediation.

Front

What is a prokaryote?

Back

A prokaryote is an organism that has cells without a nucleus, such as bacteria.

Front

What is the difference between prokaryotes and eukaryotes?

Back

Prokaryotes lack a nucleus and membrane-bound organelles, while eukaryotes have a nucleus and organelles.

Front

What do antiviral medicines do?

Back

Antiviral medicines stop viruses from reproducing.

Front

What is the role of bacteria in yogurt production?

Back

Bacteria are used in yogurt production to ferment milk, converting lactose into lactic acid.

Front

What is a host in the context of viruses?

Back

A host is an organism that a virus invades to reproduce.

Front

What is an endospore?

Back

An endospore is a dormant, tough, and non-reproductive structure produced by some bacteria to survive harsh conditions.