At mid-day hours,the xylem sap is in a state | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) During mid-day hours,the rate of transpiration is at its peak due to high solar radiation and temperature. As water evaporates from the stomata of

Vedclass · Accepted Answer

Tension

Vedclass · Answer

(B) During mid-day hours,the rate of transpiration is at its peak due to high solar radiation and temperature. As water evaporates from the stomata of leaves,it creates a negative pressure potential (suction force) in the xylem vessels. This negative pressure pulls the water column upwards from the roots to the leaves. Because the water column is being pulled under this negative pressure,the xylem sap is said to be in a state of tension (or negative hydrostatic pressure).

At mid-day hours,the xylem sap is in a state of

Similar Questions

The force of tension cohesion exceeds root pressure on a

What role is played by root pressure in the transport of water in plants?

According to one vital force theory,the ascent of sap is due to the active pulsation of the innermost layer of the cortex. This theory was proposed by:

The positive pressure that develops in the xylem of the roots of plants is called $............$.

Where are the control points located in the context of water transport in plants?

Vedclass Test Series

Exam Paper Generator

Online Exam Module