Unit 1 revision

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1. What does the blood do when exercising?

  • Transports nutrients, delivers oxygen, removes heat and lactic acid
  • Cools down, transports nutrients, hydrates and sweats
  • Sweats, gives muscles energy, hydrates and removes heat
  • Gives nutrients, gives oxygen, sweats and builds muscle
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2. Which blood vessel has valves?

  • Capillaries
  • Veins
  • Arteries

3. What do the two atria do?

  • Pump blood
  • Store blood
  • Collect blood
  • Produce blood

4. Which blood vessel is the biggest?

  • Septum
  • Vein
  • Artery
  • Capillary

5. What does the septum do?

  • Make the heart pump
  • Make the walls of the heart thicker
  • Separates the two sides of the heart
  • Stop blood from entering the heart


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