Biology B3 test

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  • Created by: hannahb
  • Created on: 02-05-16 13:48

1. Which of these is the correct description of osmosis?

  • The diffusion of water particles from a low concertration to a high concertration through a partially permeable membrane
  • Using energy from respiration, the movement of particles across a partially permeable membrane from a high concerntration to a low concerntration
  • The diffusion of water particles from a high concertration to a low concertration through a partially permeable membrane
  • Using energy from respiration, the movement of particles across a partially permeable membrane
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2. What is the function of valves?

  • To stabilise blood sugar levels
  • To prevent backflow of blood
  • To keep blood pressure content
  • To prevent blood clots

3. What is the thermoregularatory centre in the brain?

  • The ADH
  • The hypothalamus
  • The pituitary gland

4. Which of these is NOT an adaptation of red blood cells?

  • Having the ability to change shape
  • Having a large surface area
  • Having no nucleus

5. Which of these carry blood away from the heart?

  • Veins
  • Arteries
  • Capillaries
  • Valves

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