OBJECTIVE LIFE SCIENCE
PLANT PHYSIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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polarity
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a covalent bond
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cohesion/adhesion
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a hydrogen bond
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Detailed explanation-1: -Adhesion happens because the water prefers to stick to the tube, causing capillary action.
Detailed explanation-2: -In the xylem vessels, water molecules are strongly attracted to each other and exhibit a “stickiness” called cohesion that is due to the formation of hydrogen bonds between different water molecules. The “stickiness” between water molecules and the xylem vessel walls is called adhesion.
Detailed explanation-3: -Capillary action draws water up within the xylem. Cohesion-tension pulls water up the xylem.
Detailed explanation-4: -Answer and Explanation: Three properties of a water molecule enable it to move from the root system to the leaves of the plant. They are cohesion, adhesion, and high surface tension.