Connect 1-Semester Online Access for Principles of General, Organic & Biochemistry
2nd Edition
ISBN: 9780077633707
Author: Janice Smith
Publisher: Mcgraw-hill Higher Education (us)
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Textbook Question
Chapter 16, Problem 16.39AP
Draw the structure of a naturally occurring amino acid that:
- a. contains a 1° alcohol
- b. contains an amide
- c. is an essential amino acid with an
aromatic ring
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Classify each statement as either true or false:a. Amino sugar contains an amino group in place of an hydroxy group.b. Sorbitol is an example of an alditol.c. The enzyme catalyzed oxidation of a hexose always occurs on the penultimate carbon.d. Hyaluronic acid is best known for its anticoagulant activity.
Draw the structure of a naturally occurring amino acid that is a neutral amino acid with a phenol in its side chain.
When two amino acids react to form a peptide bond, one forms:
A.) amide by an electrophilic acylic substitution B.) amide by nucleophilic acylic substitution C.) lactam by nucleophilic acylic substitution D.) lactam by an electrophilic acyl substitution
Chapter 16 Solutions
Connect 1-Semester Online Access for Principles of General, Organic & Biochemistry
Ch. 16.2 - In addition to the amino and carboxyl groups, what...Ch. 16.2 - How do the OH groups in Ser, Thr, and Tyr differ?Ch. 16.2 - Draw both enantiomers of each amino acid in...Ch. 16.2 - Which of the following amino acids is naturally...Ch. 16.3 - Draw the structure of the amino acid valine at...Ch. 16.3 - Identify the amino acid shown with all uncharged...Ch. 16.3 - Draw the positively charged, neutral, and...Ch. 16.4 - Identify the N-terminal and C-terminal amino acid...Ch. 16.4 - (a) Identify the N-terminal amino acid in the...Ch. 16.4 - Identify the individual amino acids in each...
Ch. 16.4 - Prob. 16.11PCh. 16.5 - Prob. 16.12PCh. 16.6 - Prob. 16.13PCh. 16.6 - Draw the structures of each pair of amino acids...Ch. 16.6 - The fibroin proteins found in silk fibers consist...Ch. 16.7 - Prob. 16.16PCh. 16.7 - Prob. 16.17PCh. 16.8 - Prob. 16.18PCh. 16.8 - Prob. 16.19PCh. 16.8 - Prob. 16.20PCh. 16.9 - Prob. 16.21PCh. 16.9 - Prob. 16.22PCh. 16.9 - The nerve gas sarin acts as a poison by covalently...Ch. 16.10 - Prob. 16.24PCh. 16 - Prob. 16.25UKCCh. 16 - Prob. 16.26UKCCh. 16 - For each amino acid: [1] draw the L enantiomer in...Ch. 16 - For each amino acid: [1] give the name; [2] give...Ch. 16 - For the given tripeptide: (a) identify the amino...Ch. 16 - For the given tripeptide: (a) identify the amino...Ch. 16 - Label the regions of secondary structure in the...Ch. 16 - Label the regions of secondary structure in the...Ch. 16 - What type of interactions occur at each of the...Ch. 16 - Using the given representations for an enzyme and...Ch. 16 - Naturally occurring amino acids are L--amino...Ch. 16 - Why do neutral amino acids exist as zwitterions...Ch. 16 - The amino acid alanine is a solid at room...Ch. 16 - Why is phenylalanine water soluble but...Ch. 16 - Draw the structure of a naturally occurring amino...Ch. 16 - Draw the structure of a naturally occurring amino...Ch. 16 - For each amino acid: [1] draw the l enantiomer in...Ch. 16 - For each amino acid: [1] draw the l enantiomer in...Ch. 16 - Draw both enantiomers of each amino acid and label...Ch. 16 - Which of the following Fischer projections...Ch. 16 - For each amino acid: [1] give the name; [2] give...Ch. 16 - For each amino acid: [1] give the name; [2] give...Ch. 16 - Draw the amino acid leucine at each pH: (a) 6; (b)...Ch. 16 - Draw the amino acid isoleucine at each pH: (a) 6;...Ch. 16 - Draw the structure of the neutral, positively...Ch. 16 - Draw the structure of the neutral, positively...Ch. 16 - For each tripeptide: [1] identify the N-terminal...Ch. 16 - For each tripeptide: [1] identify the N-terminal...Ch. 16 - For the given tripeptide: (a) identify the amino...Ch. 16 - For the given tripeptide: (a) identify the amino...Ch. 16 - Locate the peptide bond in the dipeptide shown in...Ch. 16 - Label the N-terminal and C-terminal amino acids in...Ch. 16 - Draw the structures of the amino acids formed when...Ch. 16 - Draw the structures of the amino acids formed when...Ch. 16 - What amino acids are formed by hydrolysis of the...Ch. 16 - Give the three-letter abbreviations for the amino...Ch. 16 - What is the difference between the primary and...Ch. 16 - What is the difference between the tertiary and...Ch. 16 - What type of intermolecular forces exist between...Ch. 16 - Which of the following pairs of amino acids can...Ch. 16 - List two amino acids that would probably be...Ch. 16 - List two amino acids that would probably be...Ch. 16 - Compare -keratin and hemoglobin with regards to...Ch. 16 - Compare collagen and myoglobin with regards to...Ch. 16 - When a protein is denatured, how is its primary,...Ch. 16 - Hydrogen bonding stabilizes both the secondary and...Ch. 16 - Describe the function or biological activity of...Ch. 16 - Describe the function or biological activity of...Ch. 16 - Use the given representations for an enzyme,...Ch. 16 - Use the given representations for an enzyme and...Ch. 16 - How are enzyme inhibitors used to treat high blood...Ch. 16 - How are enzyme inhibitors used to treat HIV? Give...Ch. 16 - What structural feature in -keratin makes...Ch. 16 - Why does the -keratin in hair contain many...Ch. 16 - Why must vegetarian diets be carefully balanced?Ch. 16 - Why does cooking meat make it easier to digest?Ch. 16 - Sometimes an incision is cauterized (burned) to...Ch. 16 - Prob. 16.82APCh. 16 - How is sickle cell disease related to hemoglobin...Ch. 16 - The silk produced by a silkworm is a protein with...Ch. 16 - Explain the difference in the mechanism of action...Ch. 16 - How are blood enzyme levels used to diagnose...Ch. 16 - Explain why two amino acids aspartic acid and...Ch. 16 - Prob. 16.88CP
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- Which of the following are true concerning the chemical bond that forms between the carboxyl (RCOOH) group of one amino acid and the amino (RCNH2) group of another? a.The bond is called a peptide bond. b.It is formed by inserting a water molecule between them. c.It is formed by a dehydration reaction. d.A polypeptide has more of these bonds than a protein.arrow_forwardAt room temperature, amino acids are solids with relatively high decomposition points. Explain why.arrow_forwardION Glycine molecule shows a large conductivity when dissolved in water because; A. В. Glycine dissociates directly and form Glycine ionizes internally forming a amino and carboxylate ions dipole of two charge centers D. Glycine ionizes to form a positive ion by Glycine ionizes to form a negative ion by protonation of amino group deprotonation of carboxylic group Select answer Save C.arrow_forward
- An optically inactive amino acid is a.glycine b.valine c.serine d.arrow_forwardWhich amino acids on proteins can form glycosidic linkages? Select one: a. Cysteine and methionine b. Tryptophan and phenylalanine c. Glycine and proline d. Serine and asparagine e. Alanine and leucinearrow_forwardWhat type of bond joins amino acids into proteins? A) glycosidic bond B) hydrogen bond C) ester bond D) amide bondarrow_forward
- If a commercial lipid produced a red Kreis test it means that the lipid is Group of answer choices a. rancid b. unsaturated c. nonsaponifiable. d. not rancidarrow_forward17. Match the lipid on the left with its description on the right. 1. lecithin 2. sphingomyelin 3. wax 4. cephalin 5. glycolipid a. An ester of a fatty acid and a high-molecular- weight alcohol other than glycerol. b. A lipid that contains sphingosine, fatty acids, a phosphate group, and a nitrogen-containing compound. I c. A lipid that contains fatty acids, a sugar, and glycerol. d. A lipid that contains glycerol, fatty acids, a phosphate group, and choline. e. A lipid that contains glycerol, fatty acids, a phophate group, and ethanolamine.arrow_forwardpeptides 1 A peptide bond is classified as a(n) bond. Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a. amine b. phosphate amide P. ester Unansweredarrow_forward
- If a commercial lipid produced a red kreis test it mean the lipid is A. Nonsaponifiable B. Rancid C. Unsaturated D. Not rancidarrow_forwardWhich of the following functional groups is NOT found in amino acids? A. amine B. amide C. carboxyl D. aldehydearrow_forwardDraw the structure of a naturally occurring amino acid that contains a secondary alcohol.arrow_forward
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