VIROLOGY Flashcards
what type of organism is a virus
obligate intracellular organism
t or f. virus may contain both dna or rna
false. its either dna or rna virus
t or f. all virus are haploid.
false. all are haploid except retrovirus
type of virus:
cause infection that leads to death
virulent
type of virus:
can cause infection but not death
temperate
the entire virus unit
virion
7 parts of virion
genome capsid nucleocapsid capsomeres structural units outer membrane protein spikes
virion part:
contains genetic material
genome
virion part:
encloses the genome; protein in nature
capsid
cubic capsid
icosahedral
rod like capsid
helical
not helical nor icosahedral capsid
complex capsid
only 1 group of virus that has complex capsid
pox virus
genome + capsid
nucleocapsid
virion part:
morphological units on the capsid surface
capsomere
smallest functional unit equivalent to building units of the capsid
protomers
virion part:
facilitates the transfer of nucleic acid from one host cell to another
protein spikes
infectious protein particle
prion
t or f. virus replication happens outside the host cell
false, happens inside
steps in viral replication 1 to 5
- attachment/adsorption
- penetration
- biosynthesis
- morphogenesis/assembly
- release to extracellular fluid
viral replication steps:
interaction between the viral receptor and the host cell receptor
attachment/adsorption
how does the virus enter the host cell?
endocytosis
viral replication steps:
manufacture or production of viral components
biosynthesis
viral replication steps:
all viral components will gather or assemble together to produce one virion
morphogenesis
