Multiple choice

Which of the following tissues is living and non–nucleated at maturity?

  1. Sieve tubes

  2. Companion cells

  3. Parenchyma

  4. Collenchyma
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A Correct answer
Explanation

 Sieve tubes are living and non–nucleated at maturity.The main function of the sieve tube is transport of carbohydrates, primarily sucrose, in the plant (e.g., from the leaves to the fruits and roots).

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