Factors affecting transpiration rate

• How does light intensity affect transpiration

  More light means more photosynthesis which means the stomata open

  increasing transpiration rate
• How does temperature effect transpiration rate

  Higher temperature means the water molecules move faster, increasing the rate of diffusion and evaporation

  increasing transpiration rate
• How does air flow affect the rate of transpiration

  Air removes water vapor from surface of the leaf

  keeps the concentration of water outside lower than the inside

  Increase in concentration gradient increases transpiration rate
• How does humidity affect the rate of transpiration?

  Means there is a higher water concentration outside of the leaf

  Decreases diffusion rate

  Decreases transpiration rate