Biology random facts!

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

1. What is the function of the xylem?

  • Carries colorants through the leaf
  • Carries water and mineral ions through the leaf
  • Carries oxygen through the leaf
  • Carries products of photosynthesis through the leaf
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2. What do magnesium ions do?

  • Make oxygen and water
  • Part of chlorophyll molecule
  • Growth and repair of plant
  • Make DNA

3. What does the rectum do?

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

4. What is the function of the lower epidermis?

  • Controls activities of upper epidermis which increases the rate of photosynthesis
  • Main site of respiration
  • Contains stomata, allowing CO2 to diffuse in, and O2 to diffuse out
  • Main site of photosynthesis

5. What do nitrate ions do?

  • Make amino acids, proteins, chlorophyll, and DNA
  • Used for enzymes of respiration and photosynthesis
  • Growth and repair of plant
  • Part of chlorophyll molecule

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