How are sieve tubes designed to perform their function?
Answers
Answered by
4
Explanation:
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. .
Companion cells - transport of substances in the phloem requires energy.
Answered by
2
Answer:
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). Unlike the water-conducting xylem vessel elements that are dead when mature, sieve elements are living cells. They are unique in lacking a nucleus at maturity....
Similar questions