Limiting Factors

Cards (12)

  • Photosynthesis
    Process where light energy is absorbed by chlorophyll and used to react carbon dioxide with water to make the sugar glucose, with oxygen as a product
  • Photosynthesis
    1. Light energy absorbed by chlorophyll
    2. React carbon dioxide with water
    3. Make sugar glucose
    4. Oxygen produced
  • Limiting factors in photosynthesis
    • Light intensity
    • Carbon dioxide concentration
    • Temperature
    • Amount of chlorophyll in leaves
  • Light intensity increases
    Rate of photosynthesis increases
  • Light intensity is the limiting factor
    Rate of photosynthesis is limited by light intensity
  • Carbon dioxide concentration increases
    Rate of photosynthesis increases
  • Carbon dioxide concentration is the limiting factor
    Rate of photosynthesis is limited by carbon dioxide concentration
  • Temperature increases
    Rate of photosynthesis increases
  • Temperature is the limiting factor

    Rate of photosynthesis is limited by temperature
  • Enzymes in leaf start to denature
    Rate of photosynthesis falls
  • Greenhouses
    • Farmers use them to increase the rate of photosynthesis
    • Provide extra light and heat
    • Add extra carbon dioxide
  • The extra cost of using greenhouses has to be justified by the increase in crop yield