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Science Test Cards > Test #2 > Flashcards

Test #2 Flashcards

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Biology 101 flashcards
0
Q

What is a virus made out of

A

Nucleic acid (DNA or RNA) and a capsid

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1
Q

What kind of agent is a virus?

A

Infectious

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2
Q

What are the two kinds of nucleic acid

A

DNA or RNA

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3
Q

What is a capsid and what is it made of

A

An outer layer made of protein

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4
Q

Do viruses have organelles

A

No

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5
Q

Do they have a nucleus

A

No

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6
Q

They have cytoplasm

A

No

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7
Q

What kingdom do viruses belong to

A

None

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8
Q

Are viruses smaller than bacteria and human cells

A

Yes much smaller

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9
Q

What are retroviruses

A

A virus with RNA that forms into DNA

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10
Q

Viruses are ____

A

Parasites

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11
Q

What is a parasite

A

An organism that depends completely on a host

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12
Q

What is a bacteriophage

A

A virus that infects bacteria

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13
Q

What are the two ways that a virus replicates itself

A

Lytic or lysogenic cycle

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14
Q

In order for a virus to infect us what must happen

A

The virus and our cells must attach keys/knobs

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15
Q

How do other cells know that a certain cell belongs

A

Their keys

16
Q

What is anything that makes us sick called

A

A pathogen

17
Q

Viruses _________ the body’s natural balance

A

Disrupts

18
Q

Wha is genetic engineering

A

When a harmless virus carries good genes into the cell

19
Q

What are examples of human viruses

A

Warts, influenza, smallpox, Ebola, herpes, HIV, chicken pox, rabies

20
Q

Who developed a smallpox vaccine

A

Edward Jenner

21
Q

Do smallpox still exist

A

No

22
Q

Just because you stop having symptoms does that mean that the virus is gone

A

No viruses can stay in your body for weeks or even months and some never leave

23
Q

How do you treat a viral infection

A

A strong immune system
Vaccines and immunizations
Antivirals

Science Test Cards (3 decks)

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