BIOLOGY
PROTEINS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A They are made up of three fatty acids combined with glycogen.
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B They are more saturated with hydrogen compared with phospholipids.
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C They form a bilayer in the cell surface membranes of cells.
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D They have a lower ratio of oxygen to carbon compared with carbohydrates.
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Detailed explanation-1: -In lipids, the components are the same but the ratio is less for oxygen, so it is 1:2: less than one for C:H:O.
Detailed explanation-2: -Because one triglyceride molecule yields three fatty acid molecules with as much as 16 or more carbons in each one, fat molecules yield more energy than carbohydrates and are an important source of energy for the human body.
Detailed explanation-3: -Like all lipids, triglycerides (or triacylglycerols) are composed primarily of carbon, hydrogen and oxygen atoms. They have a glycerol backbone bound to the esters of three fatty acids, and form following a condensation reaction.
Detailed explanation-4: -Like the carbohydrates, the true fats contain only carbon, hydrogen, and oxygen. The molecules of such a lipid are made up of a glycerol molecule with three fatty acid molecules attached to it. This kind of lipid is also called a triglyceride.