Multiple Choice. Which of the following does not lose their nucleus at maturity? (a) Companion cells (b) Red blood cells (c) Vessel (d) Sicve tube cells Which of the following statements are true for pure substances?
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Explanation:
a) Companion cells
Companion cells are present along the sieve tube are connected to them via plasmodesmata. These cells are metabolically active, and sieve tube elements are dependent on these cells they do not lose nucleus at maturity. RBC vessels and sieve tube cells lose their nucleus at maturity.
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Answer:
b)Red blood cells
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