Which of the following statements is not true about triacylglycerols? When hydrolyzed, they produce glycerol and carboxylate salts. Triacylglycerols with low melting points are composed of saturated fatty acids, causing them to be liquids at room temperature. Commonly known soap is the salt of a long-chain fatty acid that can be obtained from triacylglycerols. When solids at room temperature, they are called fats. When liquids at room temperature, they are called oils. > What use is made of dicyclohexylcarbodiimide (DCC) in peptide synthesis? ODCC cleaves the protecting groups from the final peptide. DCC is the resin used in the automated synthesis of peptides. ODCC removes the peptide from the resin at the conclusion of the synthesis. ODCC "protects" the amino group of the intended N-terminal amino acid. DCC activates the carboxyl group of one amino acid so that this amino acid reacts more readily with a second amino acid.

Which of the following statements is not true about triacylglycerols? When hydrolyzed, they produce glycerol and carboxylate salts. Triacylglycerols with low melting points are composed of saturated fatty acids, causing them to be liquids at room temperature. Commonly known soap is the salt of a long-chain fatty acid that can be obtained from triacylglycerols. When solids at room temperature, they are called fats. When liquids at room temperature, they are called oils. > What use is made of dicyclohexylcarbodiimide (DCC) in peptide synthesis? ODCC cleaves the protecting groups from the final peptide. DCC is the resin used in the automated synthesis of peptides. ODCC removes the peptide from the resin at the conclusion of the synthesis. ODCC "protects" the amino group of the intended N-terminal amino acid. DCC activates the carboxyl group of one amino acid so that this amino acid reacts more readily with a second amino acid.

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter3: Biological Molecules: The Carbon Compounds Of Life

Section: Chapter Questions

Problem 1ITD

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Unlike saturated fatty acids, the tails of unsaturated fatty acids incorporate one or more _______. a. phosphate groups b. glycerols c. double bonds d. single bonds
Saturated fatty acids are so named because they are saturated with (a) hydrogen (b) water (c) hydroxyl groups (d) glycerol (e) double bonds
Which of the following is NOT TRUE about unsaturated fatty acids?
Unsaturated fatty acids are commonly esterified at the hydroxyl substituent of glycerol at what carbon number? 1st carbon 2nd carbon 3rd carbon All carbons
Which of the statements are true? a. Triacylglycerols (triglycerides) contain ester bonds. b. Unsaturated fats have higher melting points than saturated fats. c. Unsaturated fats are more likely than saturated fats to be liquid at room temperature. d. Triacylglycerols (triglycerides) always contain three identical fatty acids. e. Fats that contain more saturated fatty acid residues than unsaturated fatty acid residues are more likely to be solid at room temperature.
Triglycerides are comprised of glycerol plus ____ fatty acids, and are ____ compared to fatty acids. 3; more polar 3; less polar 2; less polar 2; more polar
TRUE OR FALSE TRIGLYCERIDE: I. Formed through dehydration resulting in loss of water II. Formed through hydrolysis resulting in loss of water III. Formed from reaction of hydroxyl group of glycerol and carboxyl group of fatty acids
Which of the following statements concerning structural characteristics of bile acids is CORRECT? * A. No hydroxyl groups are present B. More hydroxyl groups are present than cholesterol C. Fewer hydroxyl groups are present than cholesterol D. Both have the same hydroxyl groups present with cholesterol
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