MICROBIOLOGY MODULE 6 EXAM
QUESTIONS AND ANSWERS 2025
, True/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. - ANSWERTrue
True/False:
Because the genome is contained within an enclosed space (much like the nucleus of a
cell), viruses are classified as eukaryotic. - ANSWERFalse
Describe the two basic components of a virus. - ANSWERGenomic material comprised
of either DNA or RNA and a capsid
The _______ surrounds the capsid of some viruses. - ANSWERenvelope
True/False:
You would expect to see a viral envelope on a virus infecting a bacterial cell. -
ANSWERFalse
True/False:
You would expect to see a viral envelope on a virus infecting a plant cell. -
ANSWERFalse
Rank the following viruses based on their size from largest to smallest:
Orthomyxovirus
Poliovirus
Variolavirus - ANSWERVariolavirus > Orthomyxovirus > Poliovirus
True/False:
Viral replication occurs after it attaches and enters the host cell. - ANSWERTrue
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: - ANSWER1. Attachment: viral receptors bind to a host protein on the
surface of the cell
2. Entry: virus fuses with host membrane and enters cell
3. Uncoating: viral capsid disassembles
4. Replication: viral genome provides the blueprint to make copies of itself
5. Release: new viruses are produced and leave a cell
QUESTIONS AND ANSWERS 2025
, True/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. - ANSWERTrue
True/False:
Because the genome is contained within an enclosed space (much like the nucleus of a
cell), viruses are classified as eukaryotic. - ANSWERFalse
Describe the two basic components of a virus. - ANSWERGenomic material comprised
of either DNA or RNA and a capsid
The _______ surrounds the capsid of some viruses. - ANSWERenvelope
True/False:
You would expect to see a viral envelope on a virus infecting a bacterial cell. -
ANSWERFalse
True/False:
You would expect to see a viral envelope on a virus infecting a plant cell. -
ANSWERFalse
Rank the following viruses based on their size from largest to smallest:
Orthomyxovirus
Poliovirus
Variolavirus - ANSWERVariolavirus > Orthomyxovirus > Poliovirus
True/False:
Viral replication occurs after it attaches and enters the host cell. - ANSWERTrue
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: - ANSWER1. Attachment: viral receptors bind to a host protein on the
surface of the cell
2. Entry: virus fuses with host membrane and enters cell
3. Uncoating: viral capsid disassembles
4. Replication: viral genome provides the blueprint to make copies of itself
5. Release: new viruses are produced and leave a cell
