DENDROLOGY

Detailed explanation-1: -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-2: -The basic function of xylem is to transport water from roots to stems and leaves, but it also transports nutrients.

Detailed explanation-3: -Root pressure is the force that pulls water into the xylem from the roots. Root pressure forces water into the cell walls of the phloem to be transported around the plant.

Detailed explanation-4: -In plants, the transpiration stream is the uninterrupted stream of water and solutes which is taken up by the roots and transported via the xylem to the leaves where it evaporates into the air/apoplast-interface of the substomatal cavity.