Multiple choice

In both evaporation and transpiration, water is lost in the form of vapour, yet they differ because

  1. frequency of water loss is different in both of them

  2. transpiration is a physical process and evaporation is physiological process

  3. transpiration is a physiological process and evaporation is a physical process

  4. the rate of water loss differs
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Transpiration is a physiological process because it occurs through living stomatal guard cells that actively open and close. Evaporation is purely physical - water molecules escape from any exposed surface without biological control. The key difference is living tissue involvement.

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