MHT CET · BIOLOGY · STD 12 - 6. Plant Water Relation
Continuous upward flow of water stream in tall trees is maintained due to __________.
- A guttation and transpiration
- B transpiration pull only
- C cohesive force between molecules only
- D cohesive force between molecules and transpiration pull
Answer & Solution
Correct Answer
(D) cohesive force between molecules and transpiration pull
Step-by-step Solution
Detailed explanation
The cohesive force of water along with transpiration pull maintains the continuous upward movement of water stream against the force of gravity (ascent of sap).
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