Biology 2 Quiz 19-3: Question Preview (ID: 32349)

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Another name for the protein coat surrounding a virus is a capsid
a) True
b) False

One treatment for virally caused disease is the prescription of antibiotics.
a) True
b) False

Some viruses have legs which help them attach to a host cell during a lytic infection.
a) True
b) False

An antibiotic is a preparation of weakened or killed viral proteins.
a) True
b) False

A lysogenic infection occurs when a virus enters a cell, makes copies, then causes the host cell to burst.
a) True
b) False

Viruses cause infection by
a) producing toxins that harm the body
b) reproducing independently outside of the body
c) forming endospores in the body
d) entering the body cells and replicating

During a lytic infection, the host cell is
a) destroyed
b) prepared for the lysogenic cycle
c) copied many times over
d) all of the above

The outer protein coat of a virus is called a
a) core
b) capsid
c) sheath
d) bacteriophage

Unlike lytic viruses, lysogenic viruses do not
a) inject their genetic material into the host cell.
b) enter the lytic cycle.
c) lyse the host cell right away.
d) infect host cells

Bacteriophages infect
a) other bacteria
b) bacteria only
c) any avaiable host cell
d) cells undergoing the lytic cycle

All viruses are made of proteins and
a) nucleic acids
b) prophages
c) bacteriophages
d) carbohydrates

A viral capsid functions to
a) bind the virus to the surface of the host cell
b) transcribe viral genes
c) force a host cell to make copies of the virus
d) destroy a host cell

The instructions for making new copies of a virus are
a) part of the virus's capsid
b) coded in surface proteins attached to the protein coat
c) coded in either DNA or RNA
d) found only in bacteriophages

What is the structure of a virus?
a) a tiny cell surrounded by a cell wall
b) DNA or RNA surrounded by a protein coat
c) a tail sheath surrounded by a protein coat
d) a capsid surrounded by a protein coat

A lytic infection concludes with
a) embedding of viral DNA into the host cells DNA
b) production of a prophage
c) bursting of the host cell
d) production of messenger RNA

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