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Water molecules are unable to penetrate the endodermis as it is impermeable to water because of a Casparian strip which is made up of 

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Important Questions on Plant Water Relation

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Biology>Physiology>Plant Water Relation>Long Distance Transport of Water
How does ascent of sap occur in tall tree?
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Biology>Physiology>Plant Water Relation>Long Distance Transport of Water
Which of the following is not observed during the apoplastic pathway?
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Biology>Physiology>Plant Water Relation>Long Distance Transport of Water

Assertion (A): In the apoplast pathway, water movement is ultimately symplastic in the endodermis

Reason (R): Root endodermal cells are suberized

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Biology>Physiology>Plant Water Relation>Long Distance Transport of Water
How does ascent of sap takes place in tall trees?
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Biology>Physiology>Plant Water Relation>Long Distance Transport of Water

Match List - I with List - II.

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
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Biology>Physiology>Plant Water Relation>Long Distance Transport of Water
The rupture and fractionation do not usually occur in the water column in vessels/tracheids during the ascent of sap because of
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Biology>Physiology>Plant Water Relation>Long Distance Transport of Water
The principal pathway of water translocation in angiosperms is
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Biology>Physiology>Plant Water Relation>Long Distance Transport of Water
The tangential, as well as radial walls of the endodermal cells, have a deposition of water-impermeable, waxy material suberin in the form of
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Biology>Physiology>Plant Water Relation>Long Distance Transport of Water
How many structures/features are associated with apoplastic movement of water?

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Biology>Physiology>Plant Water Relation>Long Distance Transport of Water
The continuous upward flow of water stream in tall trees is maintained due to ______________________.
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Biology>Physiology>Plant Water Relation>Long Distance Transport of Water
Which of the following plants is ideal to demonstrate ascent of sap?
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Biology>Physiology>Plant Water Relation>Long Distance Transport of Water
The rupture and fractionation do not usually occur in the water column in vessel/tracheids during the ascent of sap because of
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Biology>Physiology>Plant Water Relation>Long Distance Transport of Water
Movement of water through cell wall, is
HARD
Biology>Physiology>Plant Water Relation>Long Distance Transport of Water
Select the correct name of scientists given it Column I with the theories proposed by then given in Column II
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Biology>Physiology>Plant Water Relation>Long Distance Transport of Water
Path of water movement from soil to exarch xylem is
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Biology>Physiology>Plant Water Relation>Long Distance Transport of Water
Which of the following theories for ascent of sap was proposed by an eminent Indian scientist J C Bose?
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Biology>Physiology>Plant Water Relation>Long Distance Transport of Water
When transpiration is rapid
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Biology>Physiology>Plant Water Relation>Long Distance Transport of Water
In apoplast pathaway, how does the movement of water take place?
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Biology>Physiology>Plant Water Relation>Long Distance Transport of Water
Passive absorption of water is related to all, except
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Biology>Physiology>Plant Water Relation>Long Distance Transport of Water
The magnitude of root pressure ranges between