Which of the following chemical substances can act as an 'antitranspirant'?
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Correct answer: Phenylmercuric acetate
Antitranspirants such as phenylmercuric acetate are applied to leaves to reduce water loss. They work either by inducing partial stomatal closure or by forming a thin film that is impermeable to water vapor.
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More Transpiration questions
- In a transpiring plant, the water potential is lowest in the:
- What is the primary definition of transpiration in plants?
- Which of the following structures is responsible for the majority (about 90%) of transpiration in most terrestrial plants?
- 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?