AP BIOLOGY

Detailed explanation-1: -Xylem is the specialised tissue of vascular plants that transports water and nutrients from the plant–soil interface to stems and leaves, and provides mechanical support and storage. The water-conducting function of xylem is one of the major distinguishing features of vascular plants.

Detailed explanation-2: -xylem, plant vascular tissue that conveys water and dissolved minerals from the roots to the rest of the plant and also provides physical support.

Detailed explanation-3: -The tension created by transpiration “pulls” water in the plant xylem, drawing the water upward in much the same way that you draw water upward when you suck on a straw. Cohesion (water sticking to each other) causes more water molecules to fill the gap in the xylem as the top-most water is pulled toward the stomata.

Detailed explanation-4: -Answer: Functions of xylem: (i) To carry water and mineral salts upwards from the root to different parts of shoots. (ii) To provide mechanical support to the plant as the walls of tracheids, vessels, and fibres of xylem are lignified.

Detailed explanation-5: -The xylem is a type of tissue in vascular plants that transfers water. Water and soluble nutrients such as minerals and inorganic ions are transported from the roots to the rest of the plant by the xylem.