BIOCHEMISTRY
PROPERTIES OF WATER
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Water expands as it freezes.
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Water is an excellent solvent.
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Water exhibits cohesion and adhesion.
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Water has a high heat capacity.
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Detailed explanation-1: -Cohesive and adhesive forces are important for the transport of water from the roots to the leaves in plants.
Detailed explanation-2: -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.
Detailed explanation-3: -Capillary action helps bring water up into the roots. With the help of adhesion and cohesion, water can work it’s way all the way up to the branches and leaves.
Detailed explanation-4: -The cohesive properties of water (hydrogen bonding between adjacent water molecules) allow the column of water to be ‘pulled’ up through the plant as water molecules are evaporating at the surfaces of leaf cells. This process has been termed the Cohesion Theory of Sap Ascent in plants.
Detailed explanation-5: -Cohesion is the ability of like molecules to stick together. Water is strongly cohesive (it will form hydrogen bonds)