Photosynthesis

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  • Created by: Sarah
  • Created on: 04-04-13 12:05
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  • Photosynthesis
    • Plant organs
      • Made of tissues
      • Stems
      • Roots
      • Leaves
    • Leaves
      • Leaves
      • Mesophyll tissue
        • Where photosynthesis occurs
      • Xylem & Phloem
        • Transports water,mineral ions and sucrose
      • Epidermal tissue
        • Covers the whole plant
    • Carbon dioxide+water > glucose + oxygen
      • Sunlight on leaf provides energy
      • Chrolophyll is in chloroplasts
      • Water reaches the cell via the xylem
      • Carbon Dioxide diffuses into the leaf
    • Produces glucose using sunlight
    • Limiting factors- stop photosynthesis happening faster
      • Light
        • Change light intensity by moving the lamp
          • Use a light meter to improve the results
      • Carbon dioxide
        • Dissolving hydrogencarbonate controls Carbon dioxide levels
      • Temperature
        • Above 45 degrees enzymes denature
          • Control temperature using a water bath
    • Ideal conditions can be artificially created
      • Limiting factors- stop photosynthesis happening faster
        • Light
          • Change light intensity by moving the lamp
            • Use a light meter to improve the results
        • Carbon dioxide
          • Dissolving hydrogencarbonate controls Carbon dioxide levels
        • Temperature
          • Above 45 degrees enzymes denature
            • Control temperature using a water bath
      • Heater
      • Paraffin heater
      • Artificial lighting
      • Money not wasted
    • How a plant uses glucose
      • For respiration
      • Making cell walls
      • Making proteins
      • Stored in seeds
      • Stored as starch

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