Bio 1010 - General Biology » Summer 2022 » Chapter 13 Quiz

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Question #1
A virus consists of:
A.   RNA or DNA and a cell membrane.
B.   RNA and DNA and a protein coat
C.   proteins, cell membrane and RNA
D.   RNA or DNA and a protein coat
Question #2
How do viruses reproduce?
A.   sexually, by external fertilization
B.   replication outside the host
C.   inserting nucleic acid into the host cell
D.   they divide by mitosis
Question #3
Retroviruses are different from viruses in that
A.   they infect bacteria only
B.   they have DNA instead of RNA
C.   they have a unique enzyme
D.   they lack a capsid
Question #4
A naked virus is one with out:
A.   a capsid
B.   capsomers
C.   a genome
D.   an envelop
Question #5
How are viruses different than bacteria?
A.   Viruses are obligate intracellularly
B.   Viruses are smaller
C.   All are true.
D.   Viruses do not replicate by binary fission
Question #6
In order for a virus to infect the host cell, the virus must attach to a host cell receptor. Which of the following terms describes a ability to attach to an entry receptor?
A.   acceptance
B.   permission
C.   resistance
D.   susceptibility
Question #7
The first step in all virus infections is which of the following?
A.   Migration to nucleus
B.   Uncoating
C.   Transcription
D.   Attachment to cell receptor
E.   Fusion
Question #8
The sialic receptor is commonly used by Influenza strain A virus to gain entry to respiratory and digestive tissues. This season, a majority of the reported flu illness was caused by Swine flu, not Influenza A. Swine flue attacks the same cells as Influenza A. Which of the following statements must be true?
A.   both viruses use the same sialic receptor to gain cell entry
B.   Swine flu and Influenza A are the same viruses, with different names
C.   Swine flu and Influenza Strain A attach to different receptors in order to gain entry
D.   both viruses mutate so rapidly and must wait for the host cell receptor to mutate

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