Fatty Acid and Triple Bonds

1. The â€Å"building blocks† of polysaccharides are _______, and the blocks are covalently linked together by _______. A. | glycerol and fatty acids; glycosidic linkages| B. | amino acids; triple bonds| C. | monosaccharides; glycosidic linkages| D. | disaccharides; triple bonds| E. | oligosaccharides; glycosidic linkages| Answer choice C Which of the following statements about starch is false? A. | Starch may be partially branched. | B. | Starch is a polymer of glucose. | C. | Starch is formed by the condensation of monomers. | D. The properties of starch are very similar to those of cellulose. | E. | Starch may be digested by people. | Answer choice E Which of the following characteristics distinguishes carbohydrates from other macromolecule types? A. | Carbohydrates are constructed of monomers that always have a ring structure. | B. | Carbohydrates never contain nitrogen. | C. | Carbohydrates consist of a carbon bonded to hydrogen and a hydroxyl group. | D. | Carbohydrates contain glycerol. | E. | None of the above| Answer choice A 1. A five-carbon sugar is known as a A. glutamine. | B. | glucose. | C. | hexose. | D. | pentose. | E. | None of the above| Answer choice D Oils and fats A. | form membranes. | B. | are triglycerides. | C. | all contain the same fatty acids. | D. | are good for you in large amounts. | E. | have glycosidic linkages. | Answer choice B Oils melt at a lower temperature than fats because A. | oils and fats are not the same type of macromolecule. | B. | fats contain more saturated fatty acids than oils. | C. | fats contain are unsaturated fatty acids than oils. | D. | oils are made by plants. | E. fats are common in animals. | Answer Choice C Fatty acids are A. | carboxylic acids with long hydrocarbon tails. | B. | linked to glycerol in fats by hydrogen bonds. | C. | always saturated. | D. | large polymers of monosaccharides. | E. | water soluble. | Answer choice A A phospholipid differs from a triglyceride in that phospholipids A. | are amphipathic. | B. | are not derivatives of glycerol. | C. | do not have both hydrophilic and hydrophobic parts. | D. | are used to store energy for the cell. | E. | do not contain fatty acids. | Answer choice B