Which one of the following is the most accepted theory of ascent of sap?

  • A
    Root pressure theory
  • B
    Capillary theory
  • C
    Passive transport
  • D
    Cohesion-tension theory

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

Which is the correct path for water movement during transpiration in a plant root?

Give scientific reasons:
$(1)$ Ascent of sap is done by $Xylem$ tissue.

The plant undergoes wilting when

Which of the following is not involved in the entry of water through suberized roots?

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