BIOD 171 Module 6 Exam
Attempt History
Attempt Time Score
LATEST Attempt 1 39 minutes 100 out of 100
Score for this quiz: 100 out of 100
Submitted Apr 28 at 9:02pm
This attempt took 39 minutes.
Question 1 pts
True or False. Although viruses may contain their genome within an
enclosed space (much like the nucleus of a cell), it is considered neither
eukaryotic nor prokaryotic.
Co
orrrec
ct! True
False
Question 2 pts
Describe the two basic components of a virus.
Your Answer:
Two basic components of a virus are;
1/18
, The genomic material that comprises of either DNA or RNA
A capsid, a membraneus like protective structure that contains genetic
materials similar to those of the eukaryotic cell
A virus has (1) genomic material comprised of either DNA or
RNA and (2) a capsid, a membrane-like protective structure
that contains the genetic material, similar to the nucleus of a
eukaryotic cell.
Question 3 pts
The envelope surrounds the of some viruses.
Your Answer:
Capsid
capsid
Question 4 pts
True or False. You would expect to see a viral envelope on a virus
infecting a bacterial cell.
True
Co
orrrec
ct! False
2/18
, False. The overwhelming majority of animal viruses are enveloped
whereas the majority of plant or bacteria-infecting viruses are not.
Question 5 pts
Rank the following viruses based on their size from largest to smallest:
Paramyxovirus
Poliovirus
Smallpox virus
Your Answer:
Smallpox virus(~200nm) ---> Paramyxovirus(100-150nm) --->
Poliovirus(~30nm)
Smallpox (~200nm) > Paramyxovirus (100-150nm) >
Poliovirus (~30nm)
Question 6 pts
True or False: Viral replication occurs after it attaches and enters the host
cell.
Co
orrrec
ct! True
True. The viral genome is never replicated before attachment and
entry.
3/18
, False
Question 7 pts
Place the following viral life cycle steps in order beginning with viral
attachment and provide a description of each step.
Uncoating:
Release:
Replication:
Attachment:
Entry:
New infection:
Your Answer:
Attachment --> Entry --> Uncoating --> Replication --> Release --> New
Infection
Attachment; the viral receptors attaches to te host protein on the cell
surface
Entry; the virus fuses with the membrane of the host cells and enters
the cell
Uncoating; The viral capsid disassembles
Replication; the viral genome is the blue print that replicates itself
Release; New viral particles are produced and then released
New Infection; the released new viral particles that exists the cell go
ahead and infect new cells
4/18
Attempt History
Attempt Time Score
LATEST Attempt 1 39 minutes 100 out of 100
Score for this quiz: 100 out of 100
Submitted Apr 28 at 9:02pm
This attempt took 39 minutes.
Question 1 pts
True or False. Although viruses may contain their genome within an
enclosed space (much like the nucleus of a cell), it is considered neither
eukaryotic nor prokaryotic.
Co
orrrec
ct! True
False
Question 2 pts
Describe the two basic components of a virus.
Your Answer:
Two basic components of a virus are;
1/18
, The genomic material that comprises of either DNA or RNA
A capsid, a membraneus like protective structure that contains genetic
materials similar to those of the eukaryotic cell
A virus has (1) genomic material comprised of either DNA or
RNA and (2) a capsid, a membrane-like protective structure
that contains the genetic material, similar to the nucleus of a
eukaryotic cell.
Question 3 pts
The envelope surrounds the of some viruses.
Your Answer:
Capsid
capsid
Question 4 pts
True or False. You would expect to see a viral envelope on a virus
infecting a bacterial cell.
True
Co
orrrec
ct! False
2/18
, False. The overwhelming majority of animal viruses are enveloped
whereas the majority of plant or bacteria-infecting viruses are not.
Question 5 pts
Rank the following viruses based on their size from largest to smallest:
Paramyxovirus
Poliovirus
Smallpox virus
Your Answer:
Smallpox virus(~200nm) ---> Paramyxovirus(100-150nm) --->
Poliovirus(~30nm)
Smallpox (~200nm) > Paramyxovirus (100-150nm) >
Poliovirus (~30nm)
Question 6 pts
True or False: Viral replication occurs after it attaches and enters the host
cell.
Co
orrrec
ct! True
True. The viral genome is never replicated before attachment and
entry.
3/18
, False
Question 7 pts
Place the following viral life cycle steps in order beginning with viral
attachment and provide a description of each step.
Uncoating:
Release:
Replication:
Attachment:
Entry:
New infection:
Your Answer:
Attachment --> Entry --> Uncoating --> Replication --> Release --> New
Infection
Attachment; the viral receptors attaches to te host protein on the cell
surface
Entry; the virus fuses with the membrane of the host cells and enters
the cell
Uncoating; The viral capsid disassembles
Replication; the viral genome is the blue print that replicates itself
Release; New viral particles are produced and then released
New Infection; the released new viral particles that exists the cell go
ahead and infect new cells
4/18
