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ICSE Class 8 Biology Question 8 of 21

Transport in Plants — Question 10

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10
Question

Question 1(j)

Root hairs are the epidermal outgrowths of the outermost layer of roots. They are well-suited for absorption of water from soil due to which of the following features ?

P. Large surface area.
Q. Lower concentration of cell sap.
R. Semi permeable nature of the cell membrane.

  1. Only P
  2. Only Q
  3. Only P and Q
  4. Only P and R
Answer

Only P and R

Reason — The root hairs are well-suited for absorption of water from soil due to their larger surface area, higher concentration of cell sap, and semi permeable nature of the cell membrane.