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Viro > Characteristics To Viral Replication > Flashcards

Characteristics To Viral Replication Flashcards

1
Q

It is the protein coat of virus

A

Capsid

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2
Q

Genome and protein coat

A

Nucleocapsid

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3
Q

Entire virus particle

A

Virion

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4
Q

Enveloped virus are susceptible to inactivation by….

A

High temp
Extreme pH
Chemicals

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5
Q

Non enveloped virus are also known as

A

Naked virus

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6
Q

Of host origin and contain virus encoded proteins

A

Envelope

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7
Q

3 types of virion morphology

A

Helical
Icosahedral
Complex

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8
Q

Masks the shape of the virion

A

Envelope

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9
Q

A geometric shape with 20 triangular sides

A

Icosahedral

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10
Q

Largest virus

A

Poxvirus

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11
Q

Smallest human virus

A

Poliovirus

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12
Q

Virus are classified according to

A

Genome
Number of strands in genome
Morphology
Presence and absence of envelope

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13
Q

Term which means they must be inside a living cell to use the host cell machinery to replicate

A

Obligate intracellular parasite

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14
Q

Stages of viral replication

A 
Absorption 
Penetration 
Uncoating 
Eclipse stage 
Assembly 
Release
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15
Q

Stage that is specific for cell receptors

A

Absorption

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16
Q

________ ____________ determine entry point into the host

A

Receptor distribution

17
Q

Most cell receptors are

A

Glycoproteins

18
Q

Receptor for influenza

A

Sialic acid

19
Q

Receptor for rabies virus

A

Acetylcholine

20
Q

Receptor for poliovirus

A

Immune globulins superfamily

21
Q

Receptor for HIV

A

CD4

22
Q

Receptor for EBV

A

Complement receptor C3d

23
Q

These are specialized structures on the surface of a susceptible cell

A

Adhesion molecules

24
Q

Stage that is virus dependent

A

Penetration

25
Q

Viruses that are able to penetrate the naked directly

A

Naked viruses

26
Q

Virus that enters the cell by fusion with the cell membrane

A

Enveloped virus

27
Q

Third method of penetration is

A

Endocytosis

28
Q

Metabolism of the host cell may be completely stopped or may continue on a restricted scale. Give 1 ex of virus that does this

A

Poliovirus = completely stop

Influenza virus = restricted scale

29
Q

Capsid proteins subunit aggregate to form

A

Capsomers

30
Q

Capsomers combine to form

A

Capsid

31
Q

How does naked viruses releases their new virion

A

Through lysis

32
Q

How does enveloped viruses releases their new virion

A

Budding

Viro (2 decks)

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