Viruses & Bacteria Review for Test

The only goal of a virus is to

• mutate.

• reproduce.

• kill host cells.

• infect host cells.

A virus contains

• DNA only.

• RNA only.

• either DNA or RNA.

• neither DNA nor RNA.

Which of the following accurately describes viruses?

• They can infect all living things except for plants.

• They can infect all animals, including humans.

• They can infect all living things except for bacteria.

• They can infect all living things.

The first step of viral replication is

• entry.

• assembly.

• attachment.

• integration.

What is the name of the protein coat surrounding a virus?

• capsule

• envelope

• sheath

• capsid

What is an envelope (referring to viruses)?

• It is a protein coat inside of the capsid.

• It is a structure that some viruses have surrounding their capsids.

• It is the what forms when viral DNA combines with host cell DNA.

• It is the same thing as the cell membrane.

A virus that does NOT destroy its host cell, but rather "hides out" inside of the host cell, is called a(n)_______.

• virulent virus

• bacteriophage

• temperate virus

• lytic virus

A virus which kills its host cell is called a_________.

• virulent virus

• temperate virus

• lysogenic virus

• bacteriophage

Some viruses have _________ on their surfaces, which our bodies have a hard time keeping up with.

• capsids

• spikes

• envelopes

• capsules

Which of the following is TRUE of viruses?

• They are made up of cells.

• They can perform metabolic processes.

• They can maintain homeostasis.

• They can only reproduce when inside of a host cell.