TREE PHYSIOLOGY
TRANSPIRATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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hydrogen bonds between the oxygen atoms of a water molecule and cellulose in a vessel cell
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covalent bonds between the hydrogen atoms of two adjacent water molecules
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hydrogen bonds between the oxygen atom of one water molecule and a hydrogen atom of another water molecule
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low concentrations of charged solutes in the fluid
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Detailed explanation-1: -Hydrogen bonds are attractions of electrostatic force caused by the difference in charge between slightly positive hydrogen ions and other, slightly negative ions.
Detailed explanation-2: -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-3: -This sticking together of like substances is called cohesion. Depending on how attracted molecules of the same substance are to one another, the substance will be more or less cohesive. Hydrogen bonds cause water to be exceptionally attracted to each other. Therefore, water is very cohesive.
Detailed explanation-4: -Formed bonds are called hydrogen bonds which lead to strong cohesive forces between the water molecules and high surface tension of water.
Detailed explanation-5: -Strong linkages-called covalent bonds-hold together the hydrogen (white) and oxygen (red) atoms of individual H2O molecules. Covalent bonds occur when two atoms-in this case oxygen and hydrogen-share electrons with each other.