MCQ practice · SSC Biology Board questions · Chapter 6: Transport in Organisms
Through which medium does the most transpiration take place in a plant?
Think it through first, then pick an option.
- a Root hair
- b Stoma
- c Cuticle
- d Lenticel
Answer and explanation
Correct answer: b Stoma
90-95% of total transpiration happens through stomata, so most takes place there.
Why the other options are wrong
- a Root hair: The root hair absorbs water; it does not release vapour.
- c Cuticle: Only a little water leaves through the cuticle.
- d Lenticel: The lenticel's share is very small. The right choice is: Stoma.
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