NEET BIOLOGY

Detailed explanation-1: -The ascent of sap in the xylem tissue of plants is the upward movement of water and minerals from the root to the aerial parts of the plant. The conducting cells in xylem are typically non-living and include, in various groups of plants, vessel members and tracheids.

Detailed explanation-2: -Transpiration pull is the process which is responsible for the ascent of sap. It is defined as the suction force which aids water from the roots to the leaves.

Detailed explanation-3: -The ascent of sap in the xylem tissue of plants is the upward movement of water and minerals from the root to the crown. Xylem is a complex tissue consisting of living and non-living cells. The conducting cells in xylem are typically non-living and include, in various groups of plants, vessels members and tracheids.

Detailed explanation-4: -This is called the cohesion–tension theory of sap ascent. The cohesion-tension theory explains how water moves up through the xylem. Inside the leaf at the cellular level, water on the surface of mesophyll cells saturates the cellulose microfibrils of the primary cell wall.