Assertion : In angiosperms the conduction of water is more efficient because their xylem has vessels. Reason : Conduction of water by vessel elements is an active process with energy supplied by xylem parenchyma rich in mitochondria.

Step-by-step solution

Xylem is the main conducting tissue in plants. It consists of 4 different components - tracheids, trachea or vessels, xylem fibre and xylem parenchyma. Tracheids are elongated cells with tapering end. They are generally present in ferns and gymnosperms for conduction of water. In angiosperms, vessels are composite structure as these are formed by dissolution of end walls of row of cells i.e., vessels elements. So angiosperms, have more efficient system of conduction due to presence of vessels. Conduction of water b