Limiting Factors That Affect Photosynthesis

• Increasing light intensity


  Increases the rate of photosynthesis, until light intensity becomes a limiting factor
• Increasing air movement


  Increases the rate of transpiration, due to more kinetic energy in particles creating a larger gradient for diffusion
• Increasing temperature

  Increases the rate of photosynthesis up to the optimum temperature, then increasing temperature causes enzymes to denature and the rate decreases
• How does increasing the amount of Co2 affect the rate of photosynthesis?


  Increase the rate
• Why does light intensity affect the rate of photosynthesis?

  Because the further away from the source, the light waves are dispersed (spread out)
• What is inverse square law?

  Light intensity (LI) at any distance (d) from a light source is inversely proportional to the square of the distance from the light source.