Question

how are sieve tubes elements adapted to their function​

Answer 1

Answer:

The cells that make up the phloem are adapted to their function: Sieve tubes - specialised for transport and have no nuclei . Each sieve tube has a perforated end so its cytoplasm connects one cell to the next. Sucrose and amino acids are translocated within the living cytoplasm of the sieve tubes.

Answer 2

Answer:

Sieve tube elements are anucleated cells present in phloem adapted to translocation of food(sucrose) from its source to the sink areas of the plant.

Explanation:

Each sieve tube has a perforated end through which its cytoplasm can communicate with cytoplasm of the adjoining cell. Through this cytoplasm communication, sucrose is translocated, down the concentration gradient, from one cell to the next until it reaches the sink.