FOOD CHEMISTRY
CARBOHYDRATES PROTEINS AND LIPIDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which statement explains why starches and lipids are insoluble in water?
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Starches are formed by dehydration and lipids by hydration.
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Starches have amino functional groups and lipids have carboxyl groups.
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Starches have a 2:1 ratio and lipids have a 4:1 ratio of hydrogen to oxygen.
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Starches have long polymer molecules and lipids have nonpolar molecules.
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Explanation:
Detailed explanation-1: -Final answer: Lipids are insoluble in water because lipid molecules are hydrophobic.
Detailed explanation-2: -They have long chains of nonpolar bonds, which makes them easily dissolvable in oil and grease; but they also have a polar charged group at one end, which makes them easily dissolvable in water.
Detailed explanation-3: -Lipids, i.e., fatty molecules, on the other hand, are non-polar, meaning that the charge distribution is evenly distributed, and the molecules do not have positive and negatively charged ends..
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