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Biology 11 2021 > Viruses > Flashcards

Viruses Flashcards

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1
Q

The protein case which encases that genetic material of a virus

A

capsid

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2
Q

double stranded genetic material which is contained in some viruses

A

DNA

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3
Q

Single stranded of genetic material which is present in some viruses

A

RNA

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4
Q

The pathway where a virus lies dormant for a period of time within the cell before beginning its reproductive cycle

A

Lysogenic cycle

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5
Q

The cycle of viral replication which causes the host cell to burst open (in a short time)

A

Lytic cycle

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6
Q

Virus which no longer contains its genetic material

A

ghost

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7
Q

Virus which attacks Bacteria

A

bacteriophage

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8
Q

A host cell that has viral genetic material incorporated into its DNA

A

Prophage

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9
Q

An injection given to produce immunity to a viral disease

A

Vaccine

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10
Q

… cells allow the body to react faster to an infection if the body is exposed to the pathogen more than once

A

antibody

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11
Q

a disease causing organism (could be virus or bacteria or parasite)

A

pathogen

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12
Q

Viruses considered nonliving because they cannot … without the help of a host cell

A

reproduce

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13
Q

A virus with RNA as its genetic material

A

retrovirus

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14
Q

Compared to bacteria viruses are much … in size

A

Smaller

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15
Q

Living characteristics of viruses

A
  • reproduce but only in a host cell
  • have DNA
  • have a life cycle
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16
Q

Nonliving characteristics of viruses

A
  • cannot reproduce without a host
  • are not made out of cells
  • do not require a nervy
  • do not produce waste
  • do not metabolise food
  • do not respond to their environment
  • no cell membrane/ organelles/ cells
  • do not have a limited life span
17
Q

Viral structure

A

Capsid/ protein coat
Nucleus acid/ genetic material (DNA)
Attachment fibers/ tail fibers

18
Q

Virus in Latin

A

Poison

19
Q

Vaccines inject …

A

Dead or weak virus

20
Q

Viral diseases with vaccine

A 
Measles
Chicken pox
Flu
HPV
Hepatitis
21
Q

Viral diseases without vaccine

A

HIV
Herpes
Common cold

22
Q

Lytic cycle

A

Fast
No chance of deactivation
Virulent- kills host
Example- cold, flu, Ebola, influenza, small pox, chicken pox

23
Q

Lysogenic cycle

A 
Long time/ slow
DNA remains in host cell (Prophage)
Chances of reactivating
temperate- long time to make sick
Examples- HIV, shingles, herpes
24
Q

Virus like that infect and cause disease in plants. Single stranded RNA but no capsid

A

Viroids

25
Q

Virus like which infects and causes disease in animals

No DNA or RNA only protein

A

Prions

Biology 11 2021 (5 decks)

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