B6.3 illnesses and diseases Flashcards
1
Q
malaria
A
- caused by protists - plasmodium
- spray water with insecticide / drain / use nets / take drugs
symptoms - chills, muscle pains, headaches, diarrhoea, cough
2
Q
HIV
A
- spread by direct contact and exchange of bodily fluids
- controlled by antiretroviral drugs to stop the virus entering lymph nodes
- AIDS occurs when immune system can’t deal with other infections
- VIRUS
3
Q
TMV - tobacco mosaic virus
A
- enter plants via wounds
- controlled by removing infected plant/ sterilising/ washing hands
- discoloured leaves and reduced growth of fruit
- VIRUS
4
Q
measles
A
- droplet infection
- vaccination
- fever and red rash
- VIRUS
5
Q
salmonella
A
- causes food poisoning
- fever/ vomiting / diarrhoea
- build up of toxic bacterial waste
- contaminated foods/ unhygienic preparation conditions
- BACTERIA
6
Q
gonorrhoea
A
- sexually transmitted disease
- pains when urinating / yellow discharge
- antibiotics / condoms
- BACTERIA
7
Q
barley powdery mildew
A
- white spots / yellow leaves
- FUNGI
- spread by spore in wind
- treated using fungicide
8
Q
aphids
A
- decreased growth / yellow leaves / low yields
9
Q
crown gall
A
- bacteria enter through root/ stem wounds
- plant tissues grow in disorganised way and form swollen galls
10
Q
nitrate deficiency
A
stunted growth
make amino acids
11
Q
magnesium deficiency
A
make chlorophyll
chlorides (yellow leaves)
