Polysaccharides lipids and proteins are similar in

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39) Polysaccharides, lipids, and proteins are similar in that they A) are synthesized from monomers by the process of hydrolysis. B) are synthesized from monomers by dehydration reactions. C) are synthesized as a result of peptide bond formation between monomers. D) are decomposed into their subunits by dehydration reactions. E) all contain nitrogen in their monomer building blocks. Answer: B Topic: Concepts 5.1-5.4 Skill: Knowledge/Comprehension 40) Dehydration reactions are used in forming which of the following compounds? 41) Upon chemical analysis, a particular polypeptide was found to contain 100 amino acids. How many peptide bonds are present in this protein? 11
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Skill: Knowledge/Comprehension Refer to Figure 5.6 to answer the following questions. Figure 5.6 42) At which bond would water need to be added to achieve hydrolysis of the peptide, back to its component amino acid? 43) Which bond is a peptide bond? 44) Which bond is closest to the N-terminus of the molecule? 45) Which bond is closest to the carboxyl end of the molecule? 46) How many different kinds of polypeptides, each composed of 12 amino acids, could be synthesized using the 20 common amino acids? 12
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Skill: Application/Analysis 47) Which bonds are created during the formation of the primary structure of a protein? A) peptide bonds B) hydrogen bonds C) disulfide bonds D) phosphodiester bonds E) A, B, and C Answer: A Topic: Concept 5.4 Skill: Knowledge/Comprehension 48) What maintains the secondary structure of a protein? 49) Which type of interaction stabilizes the alpha ( α ) helix and the beta ( β ) pleated sheet structures of proteins? 50) The α helix and the β pleated sheet are both common polypeptide forms found in which level of protein structure? 13
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Figure 5.7
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