NURSING EXAM QUESTIONS
BIOCHEMISTRY
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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None of the compounds in this group dissolve in water
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Carbohydrates
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Proteins
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Lipids
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Nucleic acids
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Explanation:
Detailed explanation-1: -This is because they are primarily nonpolar carbon-carbon or carbon-hydrogen bonds in hydrocarbons. Hydrophobic, or “water repelling, ‘’ non-polar compounds cannot dissolve in water. In a cell, lipids serve numerous purposes.
Detailed explanation-2: -Lipids are all insoluble in polar solvents like water but highly soluble in the non-polar or weakly polar organic solvents, including ether, chloroform, benzene, and acetone. In fact, these four solvents are often referred to as “lipid-solvents” or “fat-solvents".
Detailed explanation-3: -Lipids are chemical substances that are nonpolar in nature. Because water is a polar molecule, they are only soluble in nonpolar solvents and insoluble in water.
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