Multiple choice

Which of the following is a function of hairs present on the leaf surface?

  1. To reduce transpiration

  2. To prevent guttation

  3. To enhance gaseous exchange

  4. To prevent gaseous exchange
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Leaf hairs (trichomes) create a boundary layer of humid, still air near the leaf surface that reduces water loss through transpiration. They do not significantly affect gaseous exchange or guttation processes.

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