Viruses Practice

Viruses are considered (a)  

• Living
• Nonliving

When a virus attaches to a host, what does it inject into the host?

• Protein coat

• DNA/genetic material

• Capsid

• Envelope

Antibiotics work to cure viruses?

• True

• False

A virus consists of:

• RNA or DNA and a cell membrane

• RNA or DNA and a protein coat

• RNA and DNA and a protein coat

• proteins, cell membrane, and RNA

What is the outside protective coating of a virus made of?

• lipids

• carbohydrates

• protein

• carbon

What reason do scientists give for saying that viruses are not living organisms?

• they cannot reproduce without the aid of a host

• they do not metabolize food into energy

• they do not have organized cells

• all of the above

• none of the above

Why do viruses need a host cell?

• because they aren't living

• because they need to reproduce

• because they can't live without a host cell

What does the lytic cycle result in?

• destruction of the infected cell and the membrane

• multiple new cells

• people going in sane

True or False - Any virus can infect any cell

• True

• False

Answer explanation

Viruses are very particular to the cells they infect

What happens if a cell is in a lysogenic cycle?

• the virus will become part of your cells DNA but it hides

• the virus causes your cell to make copies of itself

• the virus will cause you cell to break open

• all of the options listed