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What is Transpiration

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What is Transpiration? ... When Do the Stomata Open? The stomata open only when the air temperature is hot, during the daylight hours. ... – PowerPoint PPT presentation

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Title: What is Transpiration


1
What is Transpiration?
  • Transpiration is the process by which the plant
    cools itself by releasing water from openings in
    its leaves called stomata.

2
Stomata
  • Stomata are openings on the bottom side of
    plants leaves which release water to cool the
    leaves when needed.
  • They are opened and closed by guard cells.

3
When Do the Stomata Open?
  • The stomata open only when the air temperature is
    hot, during the daylight hours.
  • They do not open if the plant is water stressed.
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