TREE PHYSIOLOGY
TRANSPIRATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Nonpolar covalent bonds enable water to dissolve other substances.
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Polar covalent bonds join molecules of water to other substances.
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Hydrogen bonds form between water and another substance.
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Ionic bonds enable electrons to flow through water and into another substance.
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Detailed explanation-1: -Capillary action occurs because water is sticky, thanks to the forces of cohesion (water molecules like to stay close together) and adhesion (water molecules are attracted and stick to other substances).
Detailed explanation-2: -Water molecules are bent so the hydrogen atoms are to one side of the oxygen atom. and when it come to molecules opposites attract. A bond forms between the negative side of one water molecule and the positive side of another. At that is what gives water its stickiness.
Detailed explanation-3: -The bonds between the oxygen and hydrogen atoms in water are polar, giving the oxygen a partial negative charge and the hydrogens a partial positive charge. The result is that water molecules hydrogen bond with other substances as well as each other, resulting in cohesion and adhesion.
Detailed explanation-4: -Water is adhesive to the glass capillary tubes due to hydrogen bonding. The adhesion of the water to the glass causes the water to climb up the sides of the tube, forming a concave meniscus. Due to the strong surface tension of water, the entire liquid is carried up the capillary tube.
Detailed explanation-5: -Hydrogen bonds are attractions of electrostatic force caused by the difference in charge between slightly positive hydrogen ions and other, slightly negative ions. In the case of water, hydrogen bonds form between neighboring hydrogen and oxygen atoms of adjacent water molecules.