VIROLOGY

Question 1

what type of organism is a virus

Answer 1

obligate intracellular organism

Question 2

t or f. virus may contain both dna or rna

Answer 2

false. its either dna or rna virus

Question 3

t or f. all virus are haploid.

Answer 3

false. all are haploid except retrovirus

Question 4

type of virus:

cause infection that leads to death

Answer 4

virulent

Question 5

type of virus:

can cause infection but not death

Answer 5

temperate

Question 6

the entire virus unit

Answer 6

virion

Question 7

7 parts of virion

Answer 7

genome
capsid
nucleocapsid
capsomeres
structural units
outer membrane
protein spikes

Question 8

virion part:

contains genetic material

Answer 8

genome

Question 9

virion part:

encloses the genome; protein in nature

Answer 9

capsid

Question 10

cubic capsid

Answer 10

icosahedral

Question 11

rod like capsid

Answer 11

helical

Question 12

not helical nor icosahedral capsid

Answer 12

complex capsid

Question 13

only 1 group of virus that has complex capsid

Answer 13

pox virus

Question 14

genome + capsid

Answer 14

nucleocapsid

Question 15

virion part:

morphological units on the capsid surface

Answer 15

capsomere

Question 16

smallest functional unit equivalent to building units of the capsid

Answer 16

protomers

Question 17

virion part:

facilitates the transfer of nucleic acid from one host cell to another

Answer 17

protein spikes

Question 18

infectious protein particle

Answer 18

prion

Question 19

t or f. virus replication happens outside the host cell

Answer 19

false, happens inside

Question 20

steps in viral replication 1 to 5

Answer 20

1. attachment/adsorption
2. penetration
3. biosynthesis
4. morphogenesis/assembly
5. release to extracellular fluid

Question 21

viral replication steps:

interaction between the viral receptor and the host cell receptor

Answer 21

attachment/adsorption

Question 22

how does the virus enter the host cell?

Answer 22

endocytosis

Question 23

viral replication steps:

manufacture or production of viral components

Answer 23

biosynthesis

Question 24

viral replication steps:

all viral components will gather or assemble together to produce one virion

Answer 24

morphogenesis