Photosynthesis

• Word equation for photosynthesis:

  carbon dioxide + water → glucose + oxygen
• Chemical equation for photosynthesis:

  6 CO2 + 6 H2O → C6H12O6 + 6 O2
• Factors effecting rate of photosynthesis:

  • Temperature
  • Carbon dioxide concentration
  • Light intensity
  • Amount of chlorophyll
• Uses of glucose in plants:

  • Respiration - energy from glucose
  • Strengthening cell walls - glucose is converted into cellulose
  • Protein synthesis - glucose and nitrate ions make amino acids
  • Energy storage - glucose is made into lipids
• Inverse square law

  Light intensity∝ (1/distance2 )
• Photosynthesis - an endothermic reaction in which energy is made from light energy and is converted to make glucose.