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Which of the following statements are correct ?
  1. Xylem transports water and minerals.
  2. Gymnosperms lack sieve tubes and companion cells in phloem.
  3. The first formed primary xylem is called metaxylem.
  4. Phloem fibres (bast fibres) are made up of collenchymatous cells.

A. (i) and (iii)

B. (i) and (ii)

C. (iii) and (iv)

D. (i) and (iv)

Correct Answer : B.


The first formed primary xylem elements are called protoxylem and the later formed primary xylem is called metaxylem. Phloem fibres (bast fibres) are made up of sclerenchymatous cells.

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