The cells that surround the stomatal pore and control its opening and closing are called:
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Correct answer: Guard cells
Guard cells are specialized epidermal cells containing chloroplasts. Their turgidity, influenced by water and ion concentration, determines whether the stomatal pore is open or closed.
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More Transpiration questions
- 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?
- Which of the following is an adaptation in xerophytes (desert plants) to reduce transpiration?