Other questions in this quiz

2. What is osmosis?

  • The way in which large particles move across cell walls in the bloodstream.
  • The movement of water molecules across a partially permeable membrane from a region of high water concentration to a region of low water concentration.
  • The movement of water particles from an area to low concentration to an area of high concentration.
  • The same as diffusion

3. What is the job of the lungs?

  • To thin the blood.
  • To add oxygen and nitrogen from the air into the blood.
  • To transfer oxygen into the blood and remove waste carbon dioxide.
  • To add carbon dioxide to the blood.

4. What are sports drinks designed to do?

  • Give you dehydration.
  • Replace the water, sugar and ions lost through sweat.
  • Improve your endurance.
  • Reward you after exercise.

5. What is inside the lungs?

  • Alveoli - air sacs for gas exchange.
  • Air - for breathing.
  • Capillaries - to carry the blood.
  • Villi - for gas exchange.


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