Infection and response Xo

Question 1

Doo doo

Answer 1

Protist= single-celled EUkaryote ( nuclEUs)

Question 2

How is malaria spread?

Answer 2

1. mosquitos in high temp countries carry protist (asia,africa)
2. suck blood from infected ppl -> pass onto other ppl =vector transmits
   Malaria symptoms
   •fever
   •sweats/chills
   •headaches
   •vomit
   •diarrhoea

Question 3

How is malaria prevented?

Answer 3

Vaccine, sleep under nets , insect repellent avoid bites, anti malaria Drugs

Question 4

Fungi

Answer 4

Large group of eukaryotes contain single celled yeast, mould, mushrooms

Question 5

Athletes foot fungus rash
Symptoms= red, dry,flaky,wet,cracked skin
Cause=
Transmitted by touching infected skin or surfaces (changin room, gyms, swimming pools)

Question 6

Rose black spot

Answer 6

fungus infects rose leaves
black/purple spots, rest turns yellow/ fall off plant
reduces ps reduces growth
treatment= fungicides+remove infected leaves

Question 7

How can pathogen transmission be prevented/reduced

Answer 7

1. sterilising water, cholera, chemicals/UV Kill
2. food hygiene, salmonella, cook thoroughly
3. personal hygiene, athletes foot, disinfect surfaces kill
4. vaccine, measles = weak version of pathogen, immune sister learns to defend itself
5. contraception, HIV/AiDs= barrier stops body fluid transfer

Question 8

What is the body’s first line of defence against pathogens

Answer 8

general non specific defence system (chemical, physical)