Concept explainers
To explain: The water forms nearly spherical droplets on the surface of freshly waxed cars.
Concept introduction: Most of the biological molecules have both charged (polar) and uncharged (non-polar) parts and therefore they carry hydrophobic and hydrophilic properties at the same time. Water has a hydrophilic surface; wax has a hydrophobic surface; and glass has a hydrophilic surface.
To explain: The reason why water does not bead on a clean windshield.
Concept introduction: Most of the biological molecules have both charged (polar) and uncharged (non-polar) parts and therefore they carry hydrophobic and hydrophilic properties at the same time. Water has a hydrophilic surface; wax has a hydrophobic surface; and glass has a hydrophilic surface.
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FUNDAMENTALS OF BIOCHEMISTRY-ACCESS
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