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MHT CET · BIOLOGY · STD 12 - 6. Plant Water Relation

Continuous upward flow of water stream in tall trees is maintained due to __________.

  1. A guttation and transpiration
  2. B transpiration pull only
  3. C cohesive force between molecules only
  4. D cohesive force between molecules and transpiration pull
Verified Solution

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).