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Viruses
Test Description: Test on virus vocabulary
Instructions: Answer all questions to get your test result.
1) An infectious particle made of a strand of nucleic acid surrounded by protein is a
A
viroid
B
virus
C
prion
D
bacteria
2) Any organism or particle that can cause an infectious disease is called a
A
viroid
B
virus
C
pathogen
D
bacteria
3) What part of a virus determines which host the virus infects?
A
nucleic acids
B
plasma membrane
C
receptor molecules
D
surface proteins
4) Viruses that infect bacteria are called
A
bacteriophages.
B
prophages.
C
helical viruses
D
polyhedral virus
5) In which of the following types of infection will the infected host cell burst?
A
lysogenic infection
B
lytic infection
C
prophage infection
D
provirus infection
6) The protein shell of a virus is called a
A
tail sheath
B
envelope
C
capsid.
D
spike
7) The main reason that viruses are not considered to be living things is because —
A
they do not contain any nucleic acids
B
they are not affected by antibiotics
C
they cannot reproduce on their own
D
they do not contain a nucleus
8) When HIV causes a lysogenic infection, it can remain dormant for years. When it becomes a lytic infection, it
A
mutates infrequently
B
can no longer cause AIDS.
C
causes no symptoms
D
destroys T- cells of the immune system
9) HIV is considered a retrovirus because it
A
has a high mutation rate
B
attacks the white blood cells.
C
uses RNA to make DNA
D
returns many times
10) A substance that stimulates the body's immune response against future invasion by microbes is a
A
receptor
B
mutation
C
vaccine
D
retrovirus.
*select an answer for all questions
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