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