General

Question 1

what are the bodies natural defences?
4 main
6 altogether

Answer 1

skin acts as a natural barrier
nose hairs trap and mucus trap any microorganisms
sillia waft mucus in the bronchi and trachea that has trapped any pathogens back upwards
stomach has hydrochloric acid

tears in the eye contain lysozyme enzyme that kills pathogens
blood clots prevent entry

Question 2

how are diseases spread?
4

Answer 2

droplet innfection
direct contact
contaminated food and drink
break in skin

Question 3

how can disease be prevented?
4

Answer 3

simple hygiene measures (must specify what exactly)
vaccinations
destroying vectors
isolating the infected

Question 4

what all are the required diseases what are they, how are they spread, prevented and treated?

Answer 4

gonnorhea
malaria
measels
HIV
salmonella
athletes foot

Question 5

where do each of these drugs come from?
what are they?

Answer 5

digitailes- a heart drug from fox glove (pink flowers)
aspirin-a painkiller from willow trees
penicillin- antibiotic from penicillin mould (a fungus)

Question 6

what is it called when WBC surround and engulf a pathogen?

Answer 6

Phagocytosis

Question 7

what are the advantages and disadvantages of vaccintaions?

Answer 7

advantages:
-immuntiy (less likely to die from the disease)
-controls thhe spread
-prevents epidemics
-can eradicate diseases

disadvantages:
-can make you feel ill
-dont always work