EP INTRO.TO GENERAL,ORGANIC...-OWL ACCE
12th Edition
ISBN: 9781337915984
Author: Bettelheim
Publisher: Cengage Learning
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Chapter 21, Problem 12P
Interpretation Introduction
Interpretation: Amino acids having more than one stereocenterhave to be determined.
Concept introduction:Stereocenter is the carbon that is attached with four different structures with its free valences of covalent bond.
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Chapter 21 Solutions
EP INTRO.TO GENERAL,ORGANIC...-OWL ACCE
Ch. 21.1 - Prob. 21.1QCCh. 21.2 - Prob. 21.2QCCh. 21.3 - What is the overall charge (+,0, or ) for the...Ch. 21.4 - Problem 22-1 Show how to form the dipeptide...Ch. 21.5 - Prob. 21.5QCCh. 21.7 - Prob. 21.6QCCh. 21.8 - Prob. 21.7QCCh. 21.8 - Prob. 21.8QCCh. 21.10 - Prob. 21.9QCCh. 21 - 22-5 What are the functions of (a) ovalbumin and...
Ch. 21 - 22-6 The members of which class of proteins are...Ch. 21 - 22-7 What is the function of an immunoglobulin?Ch. 21 - Prob. 4PCh. 21 - 22-9 What is the difference in structure between...Ch. 21 - 22-10 Classify the following amino acids as...Ch. 21 - 22-11 Which amino acid has the highest percentage...Ch. 21 - Prob. 8PCh. 21 - Prob. 9PCh. 21 - Prob. 10PCh. 21 - Prob. 11PCh. 21 - Prob. 12PCh. 21 - 22-17 What are the similarities and differences in...Ch. 21 - 22-18 Draw the structures of L- and D-valine.Ch. 21 - Prob. 15PCh. 21 - 22-20 Show how alanine, in solution at its...Ch. 21 - 22-21 Explain why an amino acid cannot exist in an...Ch. 21 - 22-22 Draw the structure of valine at pH 1 and at...Ch. 21 - Prob. 19PCh. 21 - 22-24 Draw the most predominant form of histidine...Ch. 21 - 22-25 Draw the most predominant form of lysine at...Ch. 21 - Prob. 22PCh. 21 - 22-27 Show by chemical equations how alanine and...Ch. 21 - 22-28 A tetrapeptide is abbreviated as DPKH. Which...Ch. 21 - 22-29 Draw the structure of a tripeptide made of...Ch. 21 - 22-30 (a) Use the three-letter abbreviations to...Ch. 21 - 22-31 A polypeptide chain is made of alternating...Ch. 21 - Prob. 28PCh. 21 - 22-33 Which of the three functional groups on...Ch. 21 - Prob. 30PCh. 21 - 22-35 Why is histidine considered a basic amino...Ch. 21 - Prob. 32PCh. 21 - Prob. 33PCh. 21 - 22-38 Why does proline not absorb light at 280 nm?Ch. 21 - Prob. 35PCh. 21 - Prob. 36PCh. 21 - Prob. 37PCh. 21 - 22-42 (a) How many atoms of the peptide bond lie...Ch. 21 - 22-43 (a) Draw the structural formula of the...Ch. 21 - 22-44 How can a protein act as a buffer?Ch. 21 - 22-45 Proteins are least soluble at their...Ch. 21 - 22-46 How many different tripeptides can be made...Ch. 21 - 22-47 How many different tetrapeptides can be made...Ch. 21 - 22-48 How many amino acid residues in the A chain...Ch. 21 - 22-49 Based on your knowledge of the chemical...Ch. 21 - Prob. 46PCh. 21 - 22-59 What is the effect of salt bridges on the...Ch. 21 - Prob. 48PCh. 21 - 22-61 Polyglutamic acid (a polypeptide chain made...Ch. 21 - 22-62 Distinguish between intermolecular and...Ch. 21 - 22-63 Identify the primary, secondary, and...Ch. 21 - 22-64 If both cysteine residues on the B chain of...Ch. 21 - 22-65 (a) What is the difference in the quaternary...Ch. 21 - Prob. 54PCh. 21 - Prob. 55PCh. 21 - Prob. 56PCh. 21 - Prob. 57PCh. 21 - Prob. 58PCh. 21 - 22-71 Which amino acid side chain is most...Ch. 21 - 22-72 What does the reducing agent do in...Ch. 21 - 22-73 Silver nitrate is sometimes put into the...Ch. 21 - 22-74 Why do nurses and physicians use 70% alcohol...Ch. 21 - Prob. 63PCh. 21 - (Chemical Connections 21B ) AGE products become...Ch. 21 - Prob. 65PCh. 21 - Prob. 66PCh. 21 - Prob. 67PCh. 21 - Prob. 68PCh. 21 - Prob. 69PCh. 21 - 22-84 How many different dipeptides can be made...Ch. 21 - 22-85 Denaturation is usually associated with...Ch. 21 - Prob. 72PCh. 21 - Prob. 73PCh. 21 - Prob. 74PCh. 21 - 22-89 What kind of noncovalent interaction occurs...Ch. 21 - Prob. 76PCh. 21 - 22-91 Which amino acid does not rotate the plane...Ch. 21 - 22-92 Write the expected products of the acid...Ch. 21 - 22-93 What charges are on aspartic acid at pH 2.0?Ch. 21 - Prob. 80PCh. 21 - Prob. 81PCh. 21 - Prob. 82PCh. 21 - 22-97 Gelatin is derived from collagen by...Ch. 21 - Prob. 84PCh. 21 - Prob. 85PCh. 21 - Prob. 86PCh. 21 - 22-101 Using what you know about protein...Ch. 21 - 22-104 Why is collagen not a very good source of...Ch. 21 - Prob. 89P
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- Which is NOT a characteristic of proteins? a. They contain genetic information. b. They can act as hormones. c. They can catalyze chemical reactions. d. They act in cell membrane trafficking.arrow_forward22-16 Which amino acids in Table 22-1 have more than one stereocenter?arrow_forward22-21 Explain why an amino acid cannot exist in an un-ionized form at any pH.arrow_forward
- Consider the tripeptide leucylvalyltryptophan. a. Specify its structure using three-letter symbols for the amino acids. b. How many peptide bonds are present within the peptide? c. Which of the amino acid residues has the largest R group? d. Which of the amino acid residues, if any, has a basic side chain?arrow_forward22-104 Why is collagen not a very good source of dietary protein?arrow_forwardTo which family of mirror-image isomers do nearly all naturally occurring amino acids belong?arrow_forward
- Consider the tripeptide tyrosylleucylisoleucine. a. Specify its structure using three-letter symbols for the amino acids. b. How many peptide bonds are present within the peptide? c. Which of the amino acid residues has the largest R group? d. Which of the amino acid residues, if any, has an acidic side chain?arrow_forwardGive one example of a conjugated protein that contains the following prosthetic group: a.iron b.lipid c.phosphate group d.carbohydrate e.hemearrow_forward22-44 How can a protein act as a buffer?arrow_forward
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