Question

The chief function of sieve tubes is

• A. To translocate the organic materials manufactured in the leaves
• B. To conduct minerals
• C. To transport water from roots to leaves
• D. To help the plant in forming wood

Answer 1

The correct option is A To translocate the organic materials manufactured in the leaves

Sieve tube cells have a tubular structure which has several perforations. It is cushioned with callus material and the end plates are called as sieve plates, through which a large number of cytoplasmic strands pass through. Most of the food material is conducted through this sieve tube in the form of sucrose.
Thus, the correct answer is option A.