AP BIOLOGY

Detailed explanation-1: -However, the phloem is alive at maturity. The sieve cells that make up the phloem stain green at maturity when stained with fast green. They have all the components of a living cell and have cytoplasm present in it unlike that of tracheids of the xylem.

Detailed explanation-2: -It is a living tissue, which is responsible for transporting food and other organic materials. Xylem generally consists of dead cells (parenchyma is the only living cell present in the xylem).

Detailed explanation-3: -Detailed Solution. The correct answer is Phloem transports photosynthetic products. Phloem is a living tissue in vascular plants that conducts the soluble organic compounds synthesized downwards from the leaves during photosynthesis.

Detailed explanation-4: -The xylem tissues also lack cell organelles. Therefore, they are considered dead.