pathogens & diseases Flashcards

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1
Q

define communicable disease

A

disease that can be passed from one organism to another - caused by pathogens

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2
Q

define pathogen

A

microorganism that causes disease

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3
Q

state 4 types of pathogens + examples of each

A
  • virus: HIV, SARS, COVID
  • protoctista: Giardia, Plasmodim
  • bacteria: MRSA, E. coli
  • fungi: Tinia pedis
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4
Q

describe how a virus can damage host tissue

A
  • take over cell metabolism
  • use it to make new viruses which burst out of cell, destroying it and spreading to other cells
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5
Q

describe how protoctista can damage host tissue

A

take over cell but digest and use cell contents as they reproduce - they dont take over genetic material

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6
Q

describe how fungi damage host tissue

A

digest living cells and destroy them

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7
Q

describe how bacteria damage host tissue

A

produce toxins that affect host cells/damage them and cause disease

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8
Q

what type of pathogen causes ring rot?

A

bacterium

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9
Q

what type of pathogen causes TMV?

A

virus

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10
Q

what type of pathogen causes potato blight?

A

protoctist

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11
Q

what type of pathogen causes black sigatoka?

A

fungus

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12
Q

identify host species of ring rot

A
  • potatoes
  • tomatoes
  • aubergines
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13
Q

identify host species of TMV

A
  • tobacco plant
  • tomato
  • peppers
  • cucumbers
  • petunias
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14
Q

identify host species of blight

A
  • potatoes
  • tomatoes
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15
Q

identify host species of black sigatoka

A

bananas

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16
Q

what type of pathogen causes tuberculosis

A

bacterium

17
Q

what type of pathogen causes bacterial meningitis

A

bacterium

18
Q

what type of pathogen causes AIDS

A

virus

19
Q

what type of pathogen causes influenza

A

virus

20
Q

what type of pathogen causes malaria

A

protoctist

21
Q

what type of pathogen causes ring worm

A

fungus

22
Q

what type of pathogen causes athletes foot

A

fungus

23
Q

identify the host species of TB

A
  • humans
  • cattle
  • badgers
  • deer
24
Q

identify the host species of bacterial meningitis

A

humans

25
Q

identify the host species of AIDS

A

humans

26
Q

identify the host species of influenza

A

mammals and birds

27
Q

identify the host species of malaria

A

humans

28
Q

identify the host species of ring worm

A

mammals

29
Q

identify the host species of athletes foot

A

humans