🎴 Flashcard Mode
Water absorption and ascent of sap in plants - class-XI
Card1 / 77
Mastered0
Review0
QuestionClick to flip
Rate of water absorption generally follows closely the rate of
AnswerClick to flip back
A
Transpiration
💡 Explanation:
The rate of transpiration is high on a bright sunny day. The water is lost from guard cell which leads to decrease in the water potential of guard cell as compared to the surrounding cell. To stabilize the water potential in the guard cell water rushes from the neighboring cell which creates a cohesion pull in the xylem vessels to pull the water up to the guard cell. Thus, the rate of water absorption increases when the transpiration is high.
So, the correct answer is option A.