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Biology y10 > Spread of disease > Flashcards

Spread of disease Flashcards

1
Q

What type of pathogen is measles

A

virus

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2
Q

What type of pathogen is HIV

A

virus

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3
Q

What type of pathogen is Malaria

A

protist

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4
Q

What type of pathogen is salmonella

A

bacterial

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5
Q

What type of pathogen is Gonorrhoea

A

bacterial

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6
Q

What type of pathogen is Rose black spot

A

Fungal

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7
Q

What type of pathogen is TMV

A

virus

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8
Q

What is the method of spread for measles

A

Inhalation of droplets from coughs and sneezes. Airborn

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9
Q

What is the method of spread for HIV

A

direct contact, sexual intercourse, exchange of bodily fluids

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10
Q

What is the method of spread for Malaria

A

Parasites living and feeding on other organisms

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11
Q

What is the method of spread for Salmonella

A

bacteria found in raw meat, eggs and more.

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12
Q

What is the method of spread for Gonnorrhoea

A

unprotected sexual intercourse

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13
Q

What is the method of spread for rose black spot

A

spores of fungus spread by wind and onto other plants when it rains

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14
Q

What is the method of spread for TMV

A

contact between diseased plantsand healthy plants. insects can count as vectors

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15
Q

What are the symptoms for Measles

A

Blindness, brain damage,fever

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16
Q

What is the method of spread for HIV

A

exchange of bodily fluids, sexual intercourse

17
Q

What is the method of spread for Malaria

A

shaking, recurrent episodes of fevers

18
Q

What is the method of spread for Salmonella

A

vomitting, diarrhoea, fever, abdominal cramps

19
Q

What is the method of spread for Gonorrhoea

A

thick yellow or green discharge, pelvic pain, infertility

20
Q

Rose Black spot

A

purple/black spots develops on leaves
leaves turn yellow and drop

21
Q

TMV

A

affects growth of plant
mosaic pattern of discolouration

22
Q

Whats treatments/controls are used to treat Measles

A

no treatment
vaccinations for children

23
Q

Whats treatments/controls are used to treat HIV

A

no treatment or vaccine
can be prevented by condoms

24
Q

Whats treatments/controls are used to treat Malaria

A

antimalarial drugs
insecticides to kill mosquitoes

25
Q

Whats treatments/controls are used to treat Salmonella

A

no antibiotics
poultry are vaccinated

26
Q

Whats treatments/controls are used to treat Gonorrhoea

A

antibiotics - penicillin
contraceptives

27
Q

Whats treatments/controls are used to treat Rose black spot

A

removing and burning affected leaves
chemical fungicides

28
Q

Whats treatments/controls are used to treat TMV

A

good field hygiene and pest control
TMV resistant crops

29
Q

how do you prevent direct contact as a method of spread

A

hand washing with soap
maintaining hygiene
disinfectants
contraceptives

30
Q

how do you prevent airborne diseases as a method of spread

A

coughing and sneezing into a tissue
washing your hands with soap
isolation

31
Q

how do you prevent water born diseases as a method of spread

A

disinfectants
vaccinations
water purifier

32
Q

a gardener is looking at the plants in his greenhouse. some of the plants have a disease
give two ways the gardener could identify the pathogen infecting the plants

A

use the internet and compare with pictures
send them to a laboratry for testing

33
Q

symptoms of nitrate deficiency in plants

A

stunted growth

34
Q

symptoms of magnesium deficiency in plants

A

yellowing of leaves or chlorosis

35
Q

plant defence responses

A

physical
chemical
others

36
Q

name some physical plant defence responses and what they do

A

bark: physical barrier
cell wall: physical barrier, prevents pathogens entering
waxy cuticle on leaves: physical barrier

37
Q

name chemical plant defence responses and what they do

A

some plants release mint and witch hazel which release antibacterial chemicals: they limit spread of bacteria that weren’t stopped by physical defence
other plants have developed to release poison chemicals or harmful chemicals to prevent themselves from being eaten eg. stinging nettles, poisonous berries

38
Q

compare the ways plants and humans defend themselves against pathogens

A
  • some plants secrete antibacterial chemicals like mint, which prevent the spread of pathogens which is similar to humans who produce tears which are anti bacterial
    -plants have cellulose walls and some have bark, which act like a physical barrier, similar to skin on humans
    -plants have defences against predators such as thorns, poisons etc., where as humans dont

Biology y10 (6 decks)

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