Which of the following statements is NOT consistent with the cohesion-tension theory?
A) A gradient of water potential exists between the stem and the root.
B) Transpiration brings about a lowered water potential in the leaves.
C) Water in the xylem is under tension.
D) A gradient of water potential provides the driving force for the movement of water from the soil through the plant to the atmosphere.
E) Root pressure is essential to the movement of water from roots to leaves.
Correct Answer:
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A)osmoticums.
B)photoreceptors.
C)microfibrils.
D)enzymes.
E)active-transport proteins.
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A)open their stomata
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Q10: In the process of stomatal closing, which
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Q17: In the process of stomatal opening, the
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