Transpiration (Grade 10 NSC Matric Life Sciences): Quizzes
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Practise the questions
10 questions from this quiz
What is transpiration?
What is transpiration?
Loss of water vapour through stomata
What is the function of guard cells?
What is the function of guard cells?
They control stomata opening and closing
How does transpiration provide structural support to plants?
How does transpiration provide structural support to plants?
Water creates turgor pressure in cells
How does higher temperature increase transpiration rate?
How does higher temperature increase transpiration rate?
Warm air holds more vapour & speeds evap.
What happens to guard cells in bright light?
What happens to guard cells in bright light?
They become turgid and open stomata wider
Why does low humidity increase transpiration rate?
Why does low humidity increase transpiration rate?
It creates a steep concentration gradient
What does a potometer measure?
What does a potometer measure?
How quickly plants take up water
Why do xerophytes have sunken stomata?
Why do xerophytes have sunken stomata?
Creates humid pockets reducing water loss
What causes wilting in plants?
What causes wilting in plants?
Water loss exceeds water absorption
How does guttation differ from transpiration?
How does guttation differ from transpiration?
Guttation produces liquid water droplets