Bacteria and Viruses

A(n) _____ is a virus that enters a bacterial cell.

• endospore
• decomposer
• plasmid
• bacteriophage

cell in which a virus reproduces

• endospore
• host cell
• bacteriophage
• plasmid

nonliving particle that can reproduce within a living cell

• endospore
• virus
• vacuole
• nucleus

How does a virus cause a person to develop the common cold?

• invades the host cell to reproduce
• removes energy from the host cell
• produces toxins in the host cell
• protects the host cell from bacteria

A virus can be classified by its type of

• mitochondria
• chromosomes
• nucleic acid
• carbohydrates

Which of the following is one important difference between a virus and a bacterial cell?

• a virus is much larger in size than a bacterial cell
• a virus always causes more severe disease than a bacterial cell
• a virus can never reproduce on its own, but a bacterial cell can
• a virus does not contain genetic material, but a bacterial cell does

virus attaches

• a
• b
• c
• d

new viruses assembled

• b
• c
• d
• e

host cell breaks open

• a
• c
• d
• e

Bacteria are...

• producers
• consumers
• decomposers
• all of these are correct