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Biology > Viral and bacterial diseases > Flashcards

Viral and bacterial diseases Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q

What does a virus consists of?

A

Gentic material (DNA or RNA) surrounded by a coat of proteins and lipids

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2
Q

What are colds and flu examples of?

A

Viral diseases

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3
Q

What is a pathogen?

A

Microorganisms that cause infections diseases

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4
Q

How are virus’s spread?

A

Direct contact, air or water

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5
Q

How does a virus enter a cell?

A

Through its cell membrane

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6
Q

Give 2 examples of viral diseases

A

Measles and HIV

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7
Q

How is measles spread?

A

Inhalation of droplets from sneezes and coughs

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8
Q

Name some symptoms of measles

A

Fever, red skin rash

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9
Q

What is done to lower the risk of catching measles?

A

Children are vaccinated

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10
Q

How is HIV spread?

A

Sexual contact and exchange of body fluids such as blood

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11
Q

Name some symptoms of HIV

A

Aids, flu - like symptoms, attacks bodies immune system

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12
Q

When does aids occur?

A

When the body’s immune system is too badly damaged

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13
Q

What is tobacco mosaic virus an example of?

A

A plant pathogen

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14
Q

What does TMV affect?

A

Plants more commonly, tomato plants

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15
Q

How is TMV spread?

A

By contact from cell to cell

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16
Q

What is a host cell?

A

The cell that the virus infects

17
Q

What is bacteria?

A

Prokaryotic organisms that can act as pathogens

18
Q

What does a bacteria cell contain?

A

Cytoplasm, a loop of DNA and plasmids

19
Q

How is bacteria spread?

A

Through direct contact, air and water

20
Q

Name 3 examples of bacteria

A

Gonorrhoea, salmonella and tuberculosis

21
Q

How is salmonella spread?

A

Food containing bacteria or bacteria on food prepared in unhinged conditions

22
Q

Name some symptoms of salmonella

A

Fever, abdominal cramps, vomitting, diarrhoea

23
Q

How is gonorrhoea spread

A

Sexual contact

24
Q

Name some symptoms of gonorrhoea

A

Pain on urinating, discharge from the vagina or penis

25
Q

What are plasmids?

A

Rings of DNA

Biology (17 decks)

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