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Patho Test 3 > Viruses > Flashcards

Viruses Flashcards

1
Q

Infection victim

A

Host

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2
Q

Pathogen

A

Cause of infection

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3
Q

Vector

A

Transferes pathogen, from one host to another. Vector isn’t harmed by pathogen

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4
Q

Ability of pathogen to enter host & cause disease

A

pathogenicity

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5
Q

degree of destruction that pathogen causes

A

virulence

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6
Q

method by which pathogen enters body

A

portal of entry

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7
Q

obligate parasites that steal metabolism of living cells in order to replicate

A

viruses

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8
Q

viruses are alive T or F?

A

False. Not alive

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9
Q

Viruses are composed of What?

A

Protein coat, surrounding a nucleic acid

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10
Q

Nucleic acids in viruses are ?

A

Control molecules

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11
Q

Viruses kill the cell by what method ?

A

replication of virus that exceeds ability of cell membrane to contain it.

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12
Q

Viruses contain toxic materials & enzymes? T or F

A

False. Massive replication kills cells

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13
Q

What is inside capsid head ?

A

Nucleic acid/Genome or virion all same thing different names

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14
Q

Capsid head is made of ?

A

Proteins / capsomeres / protein coat

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15
Q

The capsid is what type of site ?

A

antigenic site

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16
Q

Attachment mechanism of virus

A

Basilar plate/tail attachment fibers/tail pins

17
Q

Modus / Collar function ?

A

barrier to prevent virion from prematurely entering collar

18
Q

What is an active viruses that has antigenic sites & the ability to induce immune response although, attachment mechanism is destroyed

19
Q

Chemical that destroys attachment mechanism w/o destroying capsid

20
Q

detergent w/ ability to destroy attachment mechanism w/o destroying capsid

21
Q

Sodium Dodecyl sulfate - SDS & Formaldehyde prevent what?

A

Attachment mechanism w/o destroying capsid

22
Q

Nucleic acid in viruses are SS or DS from DNA or RNA. T or F ?

23
Q

Viruses Reproduce ? T or F

A

False. Replicate

24
Q

Nucleic Acid w/in the capsid is what?

25
Q

collective name for capsid & virion/nucleeic acid

26
Q

Sub-microscopic molecules are characteristics of what?

27
Q

2 independent virions sharing capsid

A

Retrovirus - HIV only one

28
Q

Retrovirus RNA virions are separated by substance consisting of 2 items ?

A
  1. Albumin 2. Palmitic Acid ( fatty acid )
29
Q

Myxovirus virion are ____ stranded DNA ?

A

double stranded DNA

30
Q

MyXoviruses cause what 3 diseases ?

A
  1. small pox 2. chicken pox 3. herpes simplex/zoster
31
Q

Two Independent RNA strands

A

Retrovirus

32
Q

Double stranded DNA

33
Q

Single Stranded DNA

A

Picornavirus

34
Q

examples of picornavirus

A

tobacco disease, rabies, polio mellitus, rubella, measles

35
Q

Guarnari viral pattern

A

bodies in jelly matrix touching nucleus

36
Q

Negri viral pattern

A

Viral bodies Never Near Nucleus

Patho Test 3 (1 decks)

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