The ascent of xylem sap in plants is mainly accomplished by the:
1. size of the stomatal aperture
2. distribution of stomata on the upper and lower epidermis
3. cohesion and adhesion between water molecules
4. root pressure
Subtopic:  Transpiration Pull: Illustration |
 71%
From NCERT
NEET - 2022
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

A column of water within xylem vessels of tall trees does not break under its weight because of?
1. Dissolved sugar in water
2. Tensile strength of water
3. Lignification of xylem vessels
4. Positive root pressure

Subtopic:  Transpiration Pull: Illustration |
 72%
From NCERT
NEET - 2015
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
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To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh