Pathogens And Diseases

Question 1

How can you catch diseases? (Transmission)

Answer 1

• direct contact
• air (if a person does not cover their mouth when sneezing)
• food poisoning
• water (make sure you boil/purify it)
• animals

Question 2

Factors that affect the spread of diseases

Answer 2

Living in cramped conditions
Having a system for taking away sewage
Clean water supply
Facilitates for cooking food

Question 3

What are the bodies defensives to disease?

Answer 3

Eyes-contains an enzyme called lypezyme which acts like an antiseptic to kill harmful pathogens
Mouth-goblet cells produce a sticky mucus to trap pathogens
Lungs-goblet cells produce a sticky mucus to trap pathogens
Skin-platelets rush to the surface forming a clot which dries the scab
Genitals
Ears
Nose
Stomach-hydrochloric acid to kill microbes

Question 4

What are vaccinations?

Answer 4

Reduces the spread of pathogens in the population and the disease may even disappear

Question 5

Herd immunity

Answer 5

Large population immune to disease