Order the structure of waxes assignment
605. Which of the following statements best describes the structure of
waxes?
(a) long-chain unsaturated carboxylic acids
(b) long-chain saturated carboxylic acids
(c) long-chain esters
(d) short-chain esters
Answer. (c)
606. Which of the following terms best describes the compound below?
CH3(CH2)26CO2CH2(CH2)32CH3
(a) a fat
(b) a wax
(c) a terpene
(d) an unsaturated triglyceride
Answer. (b)
607. Which of the following statements is not true about triacylglycerols?
(a) When solids and semisolids at room temperature, they are called fats.
(b) When liquids at room temperature, they are called oils.
(c) When hydrolyzed, they produce glycerol and carboxylate salts.
(d) Triacylglycerols with low melting points are composed of saturated fatty
acids, causing them to be liquids at room temperature.
Answer. (d)
608. Triglycerides which are solids or semisolids at room temperature are
called __________.
(a) oil
(b) fat
(c) steroid
(d) cholesterol
Answer. (b)
609. Which of the following statements is not true about phospholipids?
(a) They are similar to triacylglycerols except that the middle OH group of
glycerol reacts with a phosphate rather than with a fatty acid.
(b) They constitute a major component of cell membranes.
(c) Phosphatidic acid
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