NEET BIOLOGY

Detailed explanation-1: -As various ions from the soil are actively transported into the vascular tissues of the roots. Water follows its potential gradient and increases the pressure inside the xylem. This positive pressure is called root pressure.

Detailed explanation-2: -Xylem is responsible for the transport of water and dissolved ions from the roots upwards through the plant.

Detailed explanation-3: -xylem, plant vascular tissue that conveys water and dissolved minerals from the roots to the rest of the plant and also provides physical support. Xylem tissue consists of a variety of specialized, water-conducting cells known as tracheary elements.

Detailed explanation-4: –Positive root pressure: Positive root pressure can be defined as the pressure required to push the water absorbed by the root hairs up to small heights in the stem through water-conducting vessels known as xylem.

Detailed explanation-5: -When various ions from the soil are carried into the vascular tissues of the roots, water follows, increasing the pressure inside the xylem. This pressure is known as root pressure. Root pressure pushes up water in small stems. Thus, root pressure is said to be positive.