Means of transport, water and mineral absorption, transpiration, translocation.
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Q1 · Transport in Plants · EASY
The pathway of water movement from soil to the xylem in the root involves three routes. Which of the following is NOT one of these routes?
Q2 · Transport in Plants · EASY
During transpiration, the major portion of water is lost through which structure in leaves?
Q3 · Transport in Plants · MEDIUM
According to the cohesion-tension theory, which property of water is primarily responsible for the upward movement of water in tall trees?
Q4 · Transport in Plants · MEDIUM
The Casparian strip present in the endodermis of roots is composed of which water-impermeable substance?
Q5 · Transport in Plants · HARD
According to the pressure flow hypothesis (mass flow hypothesis) for phloem translocation, if a plant's source leaf has a solute concentration that generates an osmotic pressure of 12 atm and the sink (root) has an osmotic pressure of 5 atm, what is the approximate pressure gradient driving the flow of sap, assuming negligible resistance?