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ICSE Class 8 Biology Question 9 of 21

Transport in Plants — Question 11

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11
Question

Question 1(k)

Xylem tissue forms a tubular passage to transport water and mineral salts from the roots to the aerial parts of a plant. It consists of different types of cells.

P. Sieve tubes and companion cells
Q. Wood parenchyma and wood fibres
R. Tracheids and vessels

Which of the following are xylem components?

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

Only Q and R

Reason — The Xylem tissue consists of tracheids, vessels, wood parenchyma and wood fibres. Sieve tubes and companion cells are part of phloem, the tissue responsible for transporting prepared food, not water.