"Portage Microbiology Module 6 Flashcards |
Innate vs Adaptive, IgG vs IgM, Stages of
Infection | Fast Review Set"
Can viruses be classified as either prokaryotic or eukaryotic microorganisms?
✔✔answer✔✔Neither\0.n
What is an obligate intracellular parasite? ✔✔answer✔✔Viruses are considered obligate
intracellular parasites because they can not replicate on their own.\0.n
virus
a small, non-cellular particle that cannot replicate unless inside a living host cell
obligate intracellular parasites
unable to replicate on their own
2 components of a virus
genomic material comprised of either DNA or RNA and a capsid
capsid
a membrane-like protective structure that contains the genetic material, similar to the nucleus
of a eukaryotic cell
are viruses prokaryotic or eukaryotic?
Neither, they are acellular
Viral genomes can be either ___________-stranded and may be found in _________
arrangement
double- or single- / circular or linear
envelope
, an additional layer around the capsid, derived from the host cell membrane and serves as an
additional barrier to the external environment
naked (non-enveloped) virus
a virus simply surrounded by the protein capsid
The overwhelming majority of animal viruses are __________________ whereas the majority
of plant or bacteria-infecting viruses are not.
Enveloped
Differences in ________________ can also significantly influence the shape and appearance of
the virus.
virion composition
smallpox virus
an enveloped, ~ 200 nm long and has a distinct dumbbell shaped viral capsid
poliovirus
non-enveloped and only ~30 nm in diameter
Differences between viruses are best visualized via an ____________.
electron microscope
paramyxoviruses and orthomyxoviruses
both enveloped, spherical and ~100-150 nm in diameter but vary drastically in composition and
function
paramyxoviruses
the causative agent of measles and mumps, contain a single-stranded linear genome and fuses
with the host cell membrane to initiate entry and viral replication
orthomyxoviruses
the causative agent of the flu, contain eight segments of RNA and enters the host cell via
endocytosis
Viruses also require ___________________ in order to successfully replicate
host cell enzymes
Outside of a host cell viruses have no metabolism and are essentially ___________.
Innate vs Adaptive, IgG vs IgM, Stages of
Infection | Fast Review Set"
Can viruses be classified as either prokaryotic or eukaryotic microorganisms?
✔✔answer✔✔Neither\0.n
What is an obligate intracellular parasite? ✔✔answer✔✔Viruses are considered obligate
intracellular parasites because they can not replicate on their own.\0.n
virus
a small, non-cellular particle that cannot replicate unless inside a living host cell
obligate intracellular parasites
unable to replicate on their own
2 components of a virus
genomic material comprised of either DNA or RNA and a capsid
capsid
a membrane-like protective structure that contains the genetic material, similar to the nucleus
of a eukaryotic cell
are viruses prokaryotic or eukaryotic?
Neither, they are acellular
Viral genomes can be either ___________-stranded and may be found in _________
arrangement
double- or single- / circular or linear
envelope
, an additional layer around the capsid, derived from the host cell membrane and serves as an
additional barrier to the external environment
naked (non-enveloped) virus
a virus simply surrounded by the protein capsid
The overwhelming majority of animal viruses are __________________ whereas the majority
of plant or bacteria-infecting viruses are not.
Enveloped
Differences in ________________ can also significantly influence the shape and appearance of
the virus.
virion composition
smallpox virus
an enveloped, ~ 200 nm long and has a distinct dumbbell shaped viral capsid
poliovirus
non-enveloped and only ~30 nm in diameter
Differences between viruses are best visualized via an ____________.
electron microscope
paramyxoviruses and orthomyxoviruses
both enveloped, spherical and ~100-150 nm in diameter but vary drastically in composition and
function
paramyxoviruses
the causative agent of measles and mumps, contain a single-stranded linear genome and fuses
with the host cell membrane to initiate entry and viral replication
orthomyxoviruses
the causative agent of the flu, contain eight segments of RNA and enters the host cell via
endocytosis
Viruses also require ___________________ in order to successfully replicate
host cell enzymes
Outside of a host cell viruses have no metabolism and are essentially ___________.
