transpiration

Cards (3)

  • What is transpiration?
    the evaporation of water from the leaves of a plant
    it's a consequence of gas exchange-> transpiration occurs when the plant opens the stomata to exchange oxygen and carbon dioxide
  • What factors affect the rate o transpiration?
    light intensity
    temperature
    humidity
    air movement
    waxy cuticle
  • why is transpiration an inevitable consequence of photosynthesis?

    • During photosynthesis, stomata (small pores on leaves) open to allow carbon dioxide (CO2CO_2CO2​) to enter the leaf for the photosynthetic process.
    • Water Loss: When stomata are open for CO2CO_2CO2​ uptake, water vapor is simultaneously lost to the atmosphere. This loss occurs because the concentration of water vapor is typically lower outside the leaf compared to inside, causing water to diffuse out.