Portage Microbiology Exam #6
Study online at https://quizlet.com/_9vr78k
1. True or False: Because the genome is contained with- False. Viruses are
in an enclosed space, (much like the nucleus of a cell) neither eukaryotic
viruses are classified as eukaryotic nor prokaryotic
2. Describe the two basic components of a virus (short A virus has 1.
answer) genomic material
comprised of either
DNA or RNA and 2.
a capsid, a mem-
brane-like protec-
tive structure that
contains the genet-
ic material, similar
to the nucleus of a
eukaryotic cell
3. The _____ surrounds the capsid of some viruses Envelope
4. The envelope surrounds the _____ of some viruses Capsid
5. True or False: You would expect to see a viral enve- False. The over-
lope on a virus infecting a plant cell whelming majority
of animal virus-
es are enveloped
whereas the major-
ity of plant or bacte-
ria-infecting viruses
are not
6. True or False: You would expect to see a viral enve- False: Not all the
lope on a virus infecting a bacterial cell viruses have en-
velopes
7. Rank the following viruses based on their size from Variolavirus>Or-
largest to smallest: orthomyxovirus, poliovirus, vari- thomyxovirus>Po-
olavirus liovirus
8. Rank the following viruses based on their size from Small-
largest to smallest:Paramyxovirus, Poliovirus, Small- pox>Paramyx-
pox virus ovirus>Poliovirus
1/9
, Portage Microbiology Exam #6
Study online at https://quizlet.com/_9vr78k
9. True or False: Viral replication occurs after it attaches True. The viral
and enters the host cell genome is nev-
er replicated before
attachment and en-
try
10. True or False: Highly infectious viruses undergo False. The viral
genome replication prior to viral attachment and en- genome is nev-
try. er replicated before
attachment and en-
try regardless of its
level of infectivity.
11. Place the following viral life cycle steps in order be- Uncoating: the vi-
ginning with viral attachment and provide a descrip- ral capsid disas-
tion of each step (short answer) sembles
Release: New virus
particles are pro-
duced and leave
the cell
Replication: the vi-
ral genome is the
'blueprint' to make
copies of itself
Attachment: viral
receptors bind to
host proteins on the
surface of the cell
Entry: the virus fus-
es with the host
membrane and en-
ters the cell
New Infection: new-
ly produced viruses
that left the host cell
now go on to infect
new cells
12.
2/9
Study online at https://quizlet.com/_9vr78k
1. True or False: Because the genome is contained with- False. Viruses are
in an enclosed space, (much like the nucleus of a cell) neither eukaryotic
viruses are classified as eukaryotic nor prokaryotic
2. Describe the two basic components of a virus (short A virus has 1.
answer) genomic material
comprised of either
DNA or RNA and 2.
a capsid, a mem-
brane-like protec-
tive structure that
contains the genet-
ic material, similar
to the nucleus of a
eukaryotic cell
3. The _____ surrounds the capsid of some viruses Envelope
4. The envelope surrounds the _____ of some viruses Capsid
5. True or False: You would expect to see a viral enve- False. The over-
lope on a virus infecting a plant cell whelming majority
of animal virus-
es are enveloped
whereas the major-
ity of plant or bacte-
ria-infecting viruses
are not
6. True or False: You would expect to see a viral enve- False: Not all the
lope on a virus infecting a bacterial cell viruses have en-
velopes
7. Rank the following viruses based on their size from Variolavirus>Or-
largest to smallest: orthomyxovirus, poliovirus, vari- thomyxovirus>Po-
olavirus liovirus
8. Rank the following viruses based on their size from Small-
largest to smallest:Paramyxovirus, Poliovirus, Small- pox>Paramyx-
pox virus ovirus>Poliovirus
1/9
, Portage Microbiology Exam #6
Study online at https://quizlet.com/_9vr78k
9. True or False: Viral replication occurs after it attaches True. The viral
and enters the host cell genome is nev-
er replicated before
attachment and en-
try
10. True or False: Highly infectious viruses undergo False. The viral
genome replication prior to viral attachment and en- genome is nev-
try. er replicated before
attachment and en-
try regardless of its
level of infectivity.
11. Place the following viral life cycle steps in order be- Uncoating: the vi-
ginning with viral attachment and provide a descrip- ral capsid disas-
tion of each step (short answer) sembles
Release: New virus
particles are pro-
duced and leave
the cell
Replication: the vi-
ral genome is the
'blueprint' to make
copies of itself
Attachment: viral
receptors bind to
host proteins on the
surface of the cell
Entry: the virus fus-
es with the host
membrane and en-
ters the cell
New Infection: new-
ly produced viruses
that left the host cell
now go on to infect
new cells
12.
2/9
