Viruses Flashcards

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0
Q

Viruses do not..

A
  • grow
  • have cells
  • metabolize
  • reproduce on their own
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1
Q

Are viruses living organisms?

A

No.

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2
Q

Viruses do..

A

Infect cells and use the cell to make more viruses

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3
Q

What is a virus?

A

A virus is a small infectious agent that replicates only inside the living cells of other organisms.

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4
Q

What does virus infect?

A

Viruses can infect all types of life forms, from animals and plants to bacteria and archaea.

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5
Q

What are the domains?

A

Archaea, bacteria, eukarya

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6
Q

What is the structure of a virus?

A

Viruses are composed of genetic material, either RNA or DNA, and a protective protein layer known as a capsid

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7
Q

Explain viruses with RNA:

A
  • HIV
  • Influenca viruses
  • Rabies
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8
Q

Explain viruses with DNA:

A
  • warts

- chicken pox

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9
Q

What is the virus shape?

A

Helical, Polyhedral,

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10
Q

How do viruses replicate?

A
  1. Lytic Cycle: virus enters cell replicates itself 100x then bursts out of the cell destroying it
  2. Lysogenic Cycle: virus DNA integrates with the host DNA and the hosts cell helps create more virus DNA. Environmental change can cause the virus to enter the Lytic cell
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