Photosynthesis

• Photosynthesis Produces Glucose Using Light
• Photosynthesis


  1. Uses energy to change carbon dioxide and water

  2. Produces glucose

  3. Releases oxygen
• Photosynthesis


  • Takes place in chloroplasts in green plant cells
  • Chloroplasts contain pigments
  • Light energy is transferred to the chloroplasts from the environment
• Exothermic


  Energy is released during the process
• The equation for photosynthesis is: carbon dioxide + water -> glucose + oxygen
• The immune system can defend itself.
• 5 main ways plants use glucose

  • Respiration
  • Amino acid and protein synthesis
  • Stored as oils or fats
  • Stored as starch
  • Other used substances
• Starch


  Glucose is turned into starch and stored, which is better for storing than glucose as it doesn't draw in as much water
• Limiting Factors of Photosynthesis

  • Intensity of light
  • Concentration of CO2
  • Temperature
• Any of the three limiting factors can stop photosynthesis from happening any faster
• At night, light is the limiting factor for photosynthesis
• In winter, temperature is often the limiting factor for photosynthesis
• When it's warm enough and bright enough, the amount of CO2 is usually the limiting factor
• Chlorophyll


  • Can also be a limiting factor for photosynthesis
  • Amount of chlorophyll can be affected by disease or environmental stress