- 1(current)
Q. No.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 |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA 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 |
To view explanation, please take trial in the course below.
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To view explanation, please take trial in the course below.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology- 1(current)
Q. No.
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