Portage Microbiology Exam -6 Exam __
2026 (Actual Exam) Questions with
verified Answers (Latest Update 2026)
UPDATE!! Exam Graded A+|| EXAM
Version Updated 2026\\2027
True or False: Because the genome is contained within an enclosed space,
(much like the nucleus of a cell) viruses are classified as eukaryotic -
ANSWERS-False. Viruses are neither eukaryotic nor prokaryotic
Describe the two basic components of a virus (short answer) - ANSWERS-
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
The _____ surrounds the capsid of some viruses - ANSWERS-Envelope
The envelope surrounds the _____ of some viruses - ANSWERS-Capsid
True or False: You would expect to see a viral envelope on a virus infecting
a plant cell - ANSWERS-False. The overwhelming majority of animal
viruses are enveloped whereas the majority of plant or bacteria-infecting
viruses are not
True or False: You would expect to see a viral envelope on a virus infecting
a bacterial cell - ANSWERS-False: Not all the viruses have envelopes
, Rank the following viruses based on their size from largest to smallest:
orthomyxovirus, poliovirus, variolavirus - ANSWERS-
Variolavirus>Orthomyxovirus>Poliovirus
Rank the following viruses based on their size from largest to
smallest:Paramyxovirus, Poliovirus, Smallpox virus - ANSWERS-
Smallpox>Paramyxovirus>Poliovirus
True or False: Viral replication occurs after it attaches and enters the host
cell - ANSWERS-True. The viral genome is never replicated before
attachment and entry
True or False: Highly infectious viruses undergo genome replication prior to
viral attachment and entry. - ANSWERS-False. The viral genome is never
replicated before attachment and entry regardless of its level of infectivity.
Place the following viral life cycle steps in order beginning with viral
attachment and provide a description of each step (short answer) -
ANSWERS-Uncoating: the viral capsid disassembles
Release: New virus particles are produced and leave the cell
Replication: the viral 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 fuses with the host membrane and enters the cell
New Infection: newly produced viruses that left the host cell now go on to
infect new cells
A virus that infects bacteria is called a _____ and contains a _____ -side
polygon capsid (fill in the blank) - ANSWERS-Bacteriophage; 20-sided
2026 (Actual Exam) Questions with
verified Answers (Latest Update 2026)
UPDATE!! Exam Graded A+|| EXAM
Version Updated 2026\\2027
True or False: Because the genome is contained within an enclosed space,
(much like the nucleus of a cell) viruses are classified as eukaryotic -
ANSWERS-False. Viruses are neither eukaryotic nor prokaryotic
Describe the two basic components of a virus (short answer) - ANSWERS-
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
The _____ surrounds the capsid of some viruses - ANSWERS-Envelope
The envelope surrounds the _____ of some viruses - ANSWERS-Capsid
True or False: You would expect to see a viral envelope on a virus infecting
a plant cell - ANSWERS-False. The overwhelming majority of animal
viruses are enveloped whereas the majority of plant or bacteria-infecting
viruses are not
True or False: You would expect to see a viral envelope on a virus infecting
a bacterial cell - ANSWERS-False: Not all the viruses have envelopes
, Rank the following viruses based on their size from largest to smallest:
orthomyxovirus, poliovirus, variolavirus - ANSWERS-
Variolavirus>Orthomyxovirus>Poliovirus
Rank the following viruses based on their size from largest to
smallest:Paramyxovirus, Poliovirus, Smallpox virus - ANSWERS-
Smallpox>Paramyxovirus>Poliovirus
True or False: Viral replication occurs after it attaches and enters the host
cell - ANSWERS-True. The viral genome is never replicated before
attachment and entry
True or False: Highly infectious viruses undergo genome replication prior to
viral attachment and entry. - ANSWERS-False. The viral genome is never
replicated before attachment and entry regardless of its level of infectivity.
Place the following viral life cycle steps in order beginning with viral
attachment and provide a description of each step (short answer) -
ANSWERS-Uncoating: the viral capsid disassembles
Release: New virus particles are produced and leave the cell
Replication: the viral 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 fuses with the host membrane and enters the cell
New Infection: newly produced viruses that left the host cell now go on to
infect new cells
A virus that infects bacteria is called a _____ and contains a _____ -side
polygon capsid (fill in the blank) - ANSWERS-Bacteriophage; 20-sided
