MCQ practice · SSC Biology Board questions · Chapter 6: Transport in Organisms
Through which cell does water absorbed by the root hairs reach the leaf?
Think it through first, then pick an option.
- a Tracheid
- b Vessel
- c Xylem fibre
- d Xylem parenchyma
Answer and explanation
Correct answer: b Vessel
Water and mineral salts reach the leaves through the xylem vessels.
Why the other options are wrong
- a Tracheid: A tracheid is a xylem cell, but the book's main route to the leaf is the vessel.
- c Xylem fibre: Xylem fibre gives strength; it does not carry water.
- d Xylem parenchyma: Xylem parenchyma stores food; it is not the main route for water.
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