F212 Food & Health

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  • Created by: Matt14
  • Created on: 28-05-15 11:32

1. Name the 3 stages in selective breeding.

  • Isolation , Artificial selection , Inbreeding / line breeding
  • Isolation, natural selection , inbreeding / line breeding
  • Isolation , artificial selection , natural production
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2. What the the main types of transmission of diseases?

  • physical contact, droplet infection, vectors
  • physical contact, sharing of needles, coughing
  • vectors, droplet infection, food contimination

3. CHD is a disease caused by excess energy intake. What happens to lead to the development of CHD?

  • Excess fats are deposited along the coronary arteries and cause the artery to become narrower and less elasticated so blood pressure drops causing blood flow to be less effective
  • Excess fats taken in get deposited along coronary artery walls leading to atherosclerosis. Blood flow is restricted and cells are starved of oxygen
  • Excess fats are deposited along coronary arteries and cause a blood to become restricted and so a clot forms blocking the artery

4. give an example of an external parasite

  • head louse
  • tapeworm
  • ringworm

5. WHO uses a process to proritise their work. What is this process called?

  • Epidemiology
  • Selection
  • Observation

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