Which one of the following has cytoplasm but no nucleus : (a) xylem vessel
(b) sieve tube
(c) tracheid
(d) companion cell

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Solution

option,(b) sieve tube

In sieve tubes, nucleus is present only in young stage and without nuclei at maturity.

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Question 4
Which cell does not have perforated cell wall?

(a) Tracheids
(b) Companion cells
(c) Sieve tubes
(d) Vessels

Q. Question 23
Which of the following does not lose their nucleus at maturity?

(a) Companion cells
(b) Red blood cells
(c) Vessel
(d) Sieve tube cells

Question 23
Which of the following do not lose their nucleus at maturity?

(a) Companion cells
(b) Red blood cells
(c) Vessel
(d) Sieve tube cells

Which of the following is living but non-nucleated ? a) phloem cell b) sieve tube c) companion cell d) phloem parenchyma

What substance/substances are transported in plants by :
(a) xylem vessels and tracheids ?
(b) sieve tubes (or phloem) ?

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Which one of the following has cytoplasm but no nucleus : (a) xylem vessel (b) sieve tube (c) tracheid (d) companion cell

option,(b) sieve tube In sieve tubes, nucleus is present only in young stage and without nuclei at maturity.

Which one of the following has cytoplasm but no nucleus : (a) xylem vessel
(b) sieve tube
(c) tracheid
(d) companion cell

option,(b) sieve tube

In sieve tubes, nucleus is present only in young stage and without nuclei at maturity.