According to one vital force theory,the ascen | vedclass

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

Question

(A) The Pulsation Theory of ascent of sap was proposed by Sir $J. C. Bose$ in $1923$. According to this theory,the living cells of the innermost layer

Vedclass · Accepted Answer

$J$. $C$. Bose

Vedclass · Answer

(A) The Pulsation Theory of ascent of sap was proposed by Sir $J. C. Bose$ in $1923$. According to this theory,the living cells of the innermost layer of the cortex,which is the endodermis,exhibit rhythmic pulsations. These pulsations create a pumping action that helps in the upward movement of water (ascent of sap) through the xylem vessels. This is considered a vital force theory because it relies on the metabolic activity of living cells.

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:

Similar Questions

In plants, continuous water supply is due to

Assertion : Upward movement of water is called ascent of sap.
Reason : Upward movement of water occurs through xylem and phloem.

Why do many transplanted root hairs or seedlings fail to survive?

Root pressure develops due to

Assertion $A$: In the process of ascent of sap,water rises as a continuous column.
Reason $R$: The cohesive force between water molecules is very high.
Which option is correct for Assertion $A$ and Reason $R$?

Vedclass Test Series

Exam Paper Generator

Online Exam Module