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Question 86

Water must cross the boundary of a root hair cell over a short path. Which wall feature supports this uptake?

  1. A thin cell wallBonne réponse
  2. A thick lignified wall
  3. A wall sealed by wax
  4. A wall replaced by cilia

Explication

A thin wall keeps the route into the root hair cell short, which supports water uptake. A thick lignified wall would lengthen and stiffen that route and is characteristic of support rather than absorption.

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Question 86: Water must cross the boundary of a root hair cell over a… · Cells and Microscopy · Questena