Which of the following phenomena is not assoc | vedclass

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(D) Root pressure is a positive hydrostatic pressure that develops in the xylem of roots due to the active absorption of mineral ions. It is responsib

Vedclass · Accepted Answer

Transpiration

Vedclass · Answer

(D) Root pressure is a positive hydrostatic pressure that develops in the xylem of roots due to the active absorption of mineral ions. It is responsible for phenomena like sap exudation,bleeding,and guttation. Transpiration,on the other hand,is the loss of water in the form of vapor from aerial parts of plants. It is driven by the cohesion-tension-transpiration pull mechanism,which is a negative pressure (suction) mechanism,not a positive pressure mechanism like root pressure.

List $I$	List $II$
$A$. Cohesion	$I$. More attraction in liquid phase
$B$. Adhesion	$II$. Mutual attraction among water molecules
$C$. Surface tension	$III$. Water loss in liquid phase
$D$. Guttation	$IV$. Attraction towards polar surfaces

Which of the following phenomena is not associated with root pressure?

Similar Questions

$A$: There is an indirect relationship between the rate of respiration and water absorption.
$R$: Increased metabolism increases mineral uptake.

During which process in leaves is the water potential positive?

$A$. Much of the nitrogen in xylem sap is carried in organic form.
$B$. In phloem,the movement of nutrients is always unidirectional.

Which of the following is responsible for passive guttation?

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