OBJECTIVE LIFE SCIENCE
PLANT PHYSIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following is NOT involved in moving water up a plant?
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Capillary action made possible by the tube-shaped cells
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Transpiration in the leaves, which helps maintain low pressure in the leaves
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Companion cells pumping water in and out of the xylem using active transport
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Casparian Strip in the roots, which helps maintain high pressure of water in the roots
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Explanation:
Detailed explanation-1: -Root pressure pushes water up. Capillary action draws water up within the xylem. Cohesion-tension pulls water up the xylem.
Detailed explanation-2: -Plant stems have some very special cells called xylem. These cells form long thin tubes that run from the roots up the stems to the leaves. Their job is to carry water upward from the roots to every part of a plant.
Detailed explanation-3: -Answer and Explanation: The a) pressure flow hypothesis does not promote water movement in xylem.
There is 1 question to complete.