Which of the following structures is responsible for the majority (about 90%) of transpiration in most terrestrial plants?
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Correct answer: Stomata
Stomatal transpiration is the most significant form of water loss. Stomata are tiny pores found mostly on the underside of leaves that open and close to regulate gas exchange and water loss.
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More Transpiration questions
- The cells that surround the stomatal pore and control its opening and closing are called:
- Which instrument is used to measure the rate of transpiration by measuring the amount of water absorbed?
- How does an increase in external humidity affect the rate of transpiration?
- The 'transpiration pull' or suction force that pulls water up from the roots is best explained by which theory?
- During the day, stomata usually open due to the influx of which ions into the guard cells?
- What is the term for the loss of liquid water droplets from the margins of leaves, often mistaken for dew?