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Biology, Human Body and Health · Question 60 of 66

Question 60

MediumOriginal question

The loss of water as vapour from the leaves of a plant is called

Options for question 60

Show the answer and explanation
CorrectNot quiteAnswer B

Correct answer: B

Explanation

  1. Water evaporates from leaf cells and escapes through the stomata.

  2. This transpiration pull helps draw water up the xylem from the roots and cools the plant.

Worth noting

Guttation is the loss of liquid water drops from leaf edges, seen early in the morning, not vapour.

Concept
Transpiration
Typical time
60 s
Your time
—
The rule this testsPlant life
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Ten questions from Biology, Human Body and Health, at your own pace.

Practise this chapter →

Ten questions from Biology, Human Body and Health, at your own pace.