Question

55. Which one of the following statement is correct at functional maturity of cells?
(A) Phloem sieve elements are living cells, but xylem tracheary elements are dead
cells.
(B) Phloem sieve elements are dead cells, but xylem tracheary elements are living
cells.
(C) Both phloem sieve elements and xylem tracheary elements are living cells.
(D) Both phloem sieve and xylem tracheary elements are dead cells at functional
maturity​

Answer 1

Answer:

Phloem cells. The Sieve Elements. The sieve elements are elongated, narrow cells, which are connected together to form the sieve tube structure of the phloem. The sieve element cells are the most highly specialized cell type found in plants. They are unique in that they do not contain a nucleus at maturity and are also lacking in organelles such as ribosomes, cytosol and Golgi apparatus, …

Explanation:

I think this is the answer