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Virology (Finals) > General Characteristics, Parts of Viron, & Infectious Cycle > Flashcards

General Characteristics, Parts of Viron, & Infectious Cycle Flashcards

1
Q

smallest infectious agent : measures 20-300 in dm

A

virus

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2
Q

all virus are haploid except

A

retrovirus

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3
Q

virus has either _ and _ in nature

A

DNA and RNA

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4
Q

virus are resistant to _

A

antibiotics

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5
Q

virus are _ organisms – unable to self-replicate, requires host
cell

A

obligate intracellular

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6
Q

If the virus is envelope, it is ether _ or _

A

sensitive or labile

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7
Q

If the virus is naked, it is ether _

A

resistant

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8
Q

Naked virus

A

PPCRPA

PaPa Call Reo to Pick Adeno

Papovirus
Parvovirus
Calcivirus
Reovirus
Picornavirus
Adenovirus

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9
Q

protein shell or coat that encloses the nucleic acid (viral genome)

A

capsid

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10
Q

part of virion: DNA or RNA (never both)

A

Nucleic acid

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11
Q

Nucleic acid + capsid

A

nucleocapsid

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12
Q

morphological units seen on the surface of particles

A

capsomeres

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13
Q

capsomeres can be

A

helical and icosahedral

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14
Q

lipid containing membrane that surrounds some viral particles

A

envelope

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15
Q

envelope examples

A

Glycoprotein, matrix protein

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16
Q

smallest functional units equivalent to
building units of the capsid

A

protomers (structural unit)

17
Q

finding suitable host cell to invade

A

Attachment/Adhesion/Invasion/Adsorption

18
Q

engulfment of virus through endocytosis; if naked virus, through direct fusion

A

penetration

19
Q

penetration of enveloped virus

A

endocytosis

20
Q

penetration of naked virus

A

direct fusion

21
Q

release of viral content, separation of capsule to genetic material

A

uncoating

22
Q

replication/translation occur

A

biosynthesis

23
Q

maturation, materials are assembled to protein coat —> forming of new cell

A

assembly

24
Q

to the extracellular fluid and repeat the cycle thru budding and cell lysis

A

release

25
Q

attaches to a specific receptor —> suitable host

A

viral tropism

Virology (Finals) (6 decks)

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