Biology random facts!

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  • Created by: Polly
  • Created on: 13-04-15 12:46

1. What is the role of the stomata in gas exchange?

  • Allow CO2 to diffuse in, and O2 to diffuse out
  • Allow O2 to diffuse in, and CO2 to diffuse out
  • No function
  • Allow spongy cells to expand and contract
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2. What does vitamin A do?

  • Creates retina of eye
  • Makes rods and cones in eye
  • Makes chemical in eye retina which is light sensitive
  • Repairs muscle damage of eye (needed to be able to see after looking at sun)

3. What do proteins do?

  • Heart function
  • Energy through respiration
  • Growth and repair
  • Brain function

4. What do plants NOT use glucose for?

  • Respiration
  • Proteins
  • Cellulose
  • Cytoplasm
  • Lipids
  • Sucrose
  • Chlorophyll
  • Starch

5. What does the rectum do?

  • Neutralises food
  • Stores faeces until it is expelled by the anus
  • Absorbs soluble products of digestion
  • Absorbs remaining water

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