BIOD 171 Essential Microbiology Module
6 Exam – Actual Questions with Verified
Answers – Portage Learning|| LATEST
UPDATED 2026
Although viruses may contain their genome within an enclosed space, it is
considered neither eukaryotic or prokaryotic
True
Describe the two basic components of a virus
Genomic material comprised of either DNA or RNA; A capsid, a membrane-like
protective structure that contains the genetic material, similar to the nucleus of a
eukaryotic cell
The envelope surrounds the ___ of some viruses
Capsid
You would expect to see a viral envelope on a virus infecting a bacteria cell
False
Rank the following viruses based on their size from largest to smallest:
Paramyxovirus
Poliovirus
Smallpox
Smallpox (200nm) -> Paramyxovirus (100-150 nm) -> Poliovirus (30nm)
Viral replication occurs after it attaches and enters the host cell
True
, 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:
Attachment -> entry -> uncoating -> replication -> release -> new infection
Attachment:
The viral receptors attach to the host proteins on the surface of a cell
Entry:
The virus fuses with the host membrane and enters the cell
Uncoating:
The viral capsid disassembles
Replication:
The viral genome is the blueprint to make copies of itself
Release:
New virus particles are produced and leave the cell
New infection:
Newly produced viruses that left the host cell now go on to infect new cells
A virus that infects is called a ___ and contains a ___ -sided polygon capsid
Bacteriophage; 20
6 Exam – Actual Questions with Verified
Answers – Portage Learning|| LATEST
UPDATED 2026
Although viruses may contain their genome within an enclosed space, it is
considered neither eukaryotic or prokaryotic
True
Describe the two basic components of a virus
Genomic material comprised of either DNA or RNA; A capsid, a membrane-like
protective structure that contains the genetic material, similar to the nucleus of a
eukaryotic cell
The envelope surrounds the ___ of some viruses
Capsid
You would expect to see a viral envelope on a virus infecting a bacteria cell
False
Rank the following viruses based on their size from largest to smallest:
Paramyxovirus
Poliovirus
Smallpox
Smallpox (200nm) -> Paramyxovirus (100-150 nm) -> Poliovirus (30nm)
Viral replication occurs after it attaches and enters the host cell
True
, 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:
Attachment -> entry -> uncoating -> replication -> release -> new infection
Attachment:
The viral receptors attach to the host proteins on the surface of a cell
Entry:
The virus fuses with the host membrane and enters the cell
Uncoating:
The viral capsid disassembles
Replication:
The viral genome is the blueprint to make copies of itself
Release:
New virus particles are produced and leave the cell
New infection:
Newly produced viruses that left the host cell now go on to infect new cells
A virus that infects is called a ___ and contains a ___ -sided polygon capsid
Bacteriophage; 20
