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Biology > B5 - Viral diseases that you need to know > Flashcards

B5 - Viral diseases that you need to know Flashcards

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1
Q

what are pathogens

A

microorganisms that cause disease

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2
Q

What is a virus

A

are very small particles capable of infecting every type of living organism

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3
Q

What ype of pathogen is measles

A

a virus

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4
Q

how is measles spread

A

airbone-inhalation of droplets from coughs and sneezes

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5
Q

what are they symptoms of measles

A

fever and red skin rash

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6
Q

what are the complications of measles

A

can cuase blindness
brain damage
death

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7
Q

what are the treatments/prevention for measles

A
  • no treatment

- person has to be isoalted

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8
Q

what type of pahtogen is hiv

A

virus

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9
Q

how is hiv spread

A

sexual contact and exchange of bodily fluids

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10
Q

what are the symptoms of hiv

A

mid -flu

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11
Q

what are the complications of hiv

A

the disease can remain hidden and develop into aids .

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12
Q

what are the treatments/prevents for hiv

A

no vaccine agains tit
-use contraception
-no sharing needles
screening blood used for anitreoviral drug tranfusion ./

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13
Q

what type of pathogen is tobacco mosaic virus

A

virus

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14
Q

how is tobacco mosaic virus spread

A

contact between diseased plant material

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15
Q

what are the symptoms of tobacco mosaic virus

A

distinctive ‘mosaic’ pattern of discoloration on the leaves .

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16
Q

complicaiton of tobacco mosaic virus

A

reduction in plant growth , reduces yield of crop

-virus remains infectious in the soil for years

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17
Q

what are the treatments / prevention for tobacco mosaic virus

A

no treatment
farmerss grow tmv resistant strins of many crop plant
-good field hygiene and pest control can prevent the spread of TMV .

18
Q

what type of pathogen is salmonella food posioning

A

bacteria

19
Q

how is salmonella spread

A
  • eating undercooked food
  • eating food in unhygienic conditions
  • eating food where bacteria isn’t killed by heting
20
Q

what are the symptoms of salmonella food poisoning

A

abdominal cramps
vomiting
diarrhoea

21
Q

what are the complications of salmonella

A

-fatal for young and elderly due to dehyrdation

22
Q

treatments/preventio of salmonella

A
  • poultry vaccinated agaisnt salmonella
  • kee raw chicken away from cooked foods .
  • wash hands and surfaces after handling raw chicken .
23
Q

what type of pthogen is gonorrhoea

A

bacteeria

24
Q

how is gonorrhoea spread

A

unportected sexual contact with an infected person

25
Q

symptoms of gonorrhoea

A

thick yellow green discharge from vagina or penis

-pain when urinating

26
Q

complications of gonorrhoea

A
  • long term pelvic pain
  • infertility
  • ectopic pregancies
27
Q

what are the treatments/preventions ofr gonorrhoea

A

can be treated iwth antibiotics
using contraception
reducing hte number of partners

28
Q

what type of pathogen is rose black spot

A

fungus

29
Q

what are the symptoms of rose black spot

A

leaves turn yellow nd droop erly .

-black or purple spots on the leafs surface

30
Q

what are the complications of rose black spot

A

reduces the area of leaves available to photosynthesise

31
Q

what type of pathogen is malaria

A

protist

32
Q

what are they symptoms of malaria

A

recurrent episodes of fever and shaking

33
Q

what are the complications for malria

A

the liver

  • damages the red blood ceels
  • caj be fataal
34
Q

what are the treatments/preventions for malaria

A

using insciticdes to kill mosuquitoes

-travellers can take antmalrial drugs

35
Q

what are fungi

A

fungi are eukaryotic organisms , some cn cuase disease in animals and plants .

36
Q

what are protists

A

protisits are single celled eukaryotic organisms that cuase disease , if they hey ener the body of another organism

37
Q

what is lage stage HIV

A

AIDS

38
Q

What cause late stage HIV

A

If you have HIV and you are not on HIV treatment

39
Q

descrie how viruses cause cell damage

A

when they have infected a suitbale host cell , they replicate themsleves and their dna . These are assmebled into new virus particles . The host cell or cells then brst and the neabry cells are infected w the virus .

40
Q

why are aniretrovial durgs given to people who ahve hiv

A

as it stops the virus replicating in the bodoy . Allowing the immune system to repair without experiencing any further damage .

41
Q

how can the mosaic pttern of discoloration on plnt leaves reedcue plant growth

A

it infects the chloroplats - turns the colour green chlorophyll yelow reducing the ability of the plant to photosynthesise and grow properly

Biology (25 decks)

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