Photosynthesis

• Plants use light for their source of energy
• Photosynthesis is an endothermic reaction
• Photosynthesis takes place in the leaves of a plant, because they contain chlorophyll, which absorbs light energy.
• Carbon dioxide + water --> light & chlorophyll --> glucose + oxygen
• The more photosynthesis takes place, the faster the rate gets as there is more energy for it
• Limiting factors:

  • Light intensity
  • Carbon dioxide
  • Amount of chlorophyll in the leaf
  • Temperature
• If the temperature gets too high, the enzymes will denature and photosynthesis will no longer be able to take place
• Once the rate of photosynthesis stops increasing on a graph plotted against a limiting factor, this means that the factor in question is no longer the limiting factor.