Question

The principal pathway of water translocation in angiosperms is

• A. Sieve cells
• B. Sieve tube elements
• C. Xylem vessel system
• D. Xylem and phloem

Answer 1

The correct option is C Xylem vessel system

Translocation is the movement of solutes from the leaf to various parts of the body. Sucrose is actively participated from the sources to the sink. As the sucrose moves down from the source the water potential decreases and thus water from the xylem enters the phloem. The movement of water in the xylem is mainly carried by xylem vessels. Xylem vessels are long hollow chains of tough long dead xylem cells. The main function of xylem vessel is to conduct water and minerals from one part to another.

So, the correct answer is option C.