Transport and Transport Systems

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  • Created by: riana1705
  • Created on: 03-05-16 18:51

1. Can cells absorb ions from very dilute solutions?

  • I don't know.
  • Yes - through active transport.
  • No - there are more particles in the cells than in the dilute solution.
  • It depends on the solution.
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2. What is the job of the lungs?

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

3. How does a cell which is short of water gain water from the surrounding tissue fluid?

  • Through active transport.
  • Its cell wall/membrane will open to let the water inside.
  • Through osmosis.
  • Through diffusion.

4. Where is active transport most likely to happen?

  • In the digestive system, when nutrients should be taken to the blood.
  • In the brain, when neurones are travelling the wrong way.
  • At the gym.
  • In the lungs, when blood is being oxygenated.

5. What is inside the lungs?

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

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