General, Organic, and Biological Chemistry - 4th edition
4th Edition
ISBN: 9781259883989
Author: by Janice Smith
Publisher: McGraw-Hill Education
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Question
Chapter 25.4, Problem 25.11P
Interpretation Introduction
(a)
Interpretation:
The product formed when the protein reacts with the excess of an acid needs to be determined.
Concept Introduction:
The proteins act as buffer for the body and they do not let the overall pH of the body to go beyond a certain limit and this happens due to the carboxylate anion and ammonium cations.
Interpretation Introduction
(b)
Interpretation:
The structure formed needs to be drawn when the protein reacts with excess base.
Concept Introduction:
The protein acts as a buffer for the body and maintains the pH of the body by means reacting with bases and acids. The carboxylate ion reacts with the acids and the ammonium end of the protein reacts with base or the nucleophiles.
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Lysine and tryptophan are two amino acids that contain an additional N atom in the R group bonded to the a carbon. While lysine is classified as a basic amino acid because it contains an additional basic N atom, tryptophan is classified as a neutral amino acid. Explain why this difference in classification occurs.
Your task is to categorize and tabulate the 20 standard
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3. Three-letter abbreviation
4. Structure of R-group (if you will present the full
picture of the amino acid, encircle or highlight the R
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5. Classification (1, 2, 3 or 4)
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Chapter 25 Solutions
General, Organic, and Biological Chemistry - 4th edition
Ch. 25.1 - Prob. 25.1PCh. 25.1 - Prob. 25.2PCh. 25.2 - Compare erythrocytes, leukocytes, and platelets...Ch. 25.2 - Prob. 25.4PCh. 25.2 - Prob. 25.5PCh. 25.2 - Prob. 25.6PCh. 25.2 - Prob. 25.7PCh. 25.3 - Prob. 25.8PCh. 25.3 - Prob. 25.1PPCh. 25.3 - Prob. 25.9P
Ch. 25.3 - Prob. 25.10PCh. 25.4 - Prob. 25.11PCh. 25.4 - Prob. 25.12PCh. 25.5 - (a) Which compound, morphine or heroin, is more...Ch. 25.5 - Prob. 25.14PCh. 25.6 - Prob. 25.15PCh. 25.6 - Prob. 25.16PCh. 25.6 - Prob. 25.17PCh. 25.6 - Individuals with a rare condition called diabetes...Ch. 25 - Prob. 19PCh. 25 - Prob. 20PCh. 25 - Prob. 21PCh. 25 - Prob. 22PCh. 25 - Prob. 23PCh. 25 - Prob. 24PCh. 25 - Prob. 25PCh. 25 - Prob. 26PCh. 25 - For each substance, indicate if it is present in...Ch. 25 - Prob. 28PCh. 25 - Prob. 29PCh. 25 - Prob. 30PCh. 25 - Prob. 31PCh. 25 - Prob. 32PCh. 25 - Prob. 33PCh. 25 - Prob. 34PCh. 25 - Prob. 35PCh. 25 - Which of the following locations corresponds to...Ch. 25 - Prob. 37PCh. 25 - Prob. 38PCh. 25 - Prob. 39PCh. 25 - Prob. 40PCh. 25 - Prob. 41PCh. 25 - Prob. 42PCh. 25 - Explain how abnormally fast respirationthat is,...Ch. 25 - Prob. 44PCh. 25 - Prob. 45PCh. 25 - Prob. 46PCh. 25 - Prob. 47PCh. 25 - Prob. 48PCh. 25 - When blood flows through the glomerulus, which...Ch. 25 - Prob. 50PCh. 25 - Prob. 51PCh. 25 - Prob. 52P
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- Draw the protein. Follow the instructionsarrow_forward1. (a) Draw a circle around one amino acidin the structure. ( b) Draw a box around one amino acid side chain. (c) Indicate whether the side chain you chose is hydrophobic or hydrophilic. (d) Draw an arrow pointing to a peptide bond 2. If the peptide segment shown above was part of a beta sheet, which of its functional groups would be involved in forming and stabilizing the beta sheet? 3. Which amino acid (also called amino acid residue)would be more likely to occur on the surface of a protein: an aspartate residue or a methionine residue? Explain your choice.arrow_forwardExplain the process of protein de maturation with an appropriate examplearrow_forward
- Label the bond that cyclizes this peptide and note what type of covalent bond this is and what chemical groups this bond links.arrow_forwardLysine and tryptophan are two amino acids that contain an additional N atom in the R group bonded to the α carbon. While lysine is classified as a basic amino acid because it contains an additional basic N atom, tryptophan is classified as a neutral amino acid. Explain why this difference in classification occurs.arrow_forwardExplain & draw succinic acid ?arrow_forward
- Net charge and isoelectric point of an amino acid with an ionizable side group.Consider the net charge and isoelectric point of an amino acid with ionizable side (R-) group.(a) Identify the acidic amino acid(s) capable of having a negatively charged carboxyl side group.(b) Identify the basic amino acid(s) capable of having a positively charged amino side group.(c) For an amino acid with a side (R-) chain that can ionize to a negative charge, derive a general expression in terms of measured pH and known pKa values of α-carboxyla-amino (pKca), α-amino(pKaa),and side group (pKRa), respectively, for the net charge of an amino acid Consider the net charge and isoelectric point of an amino acid with ionizable side (R-) group.(d) For an amino acid with a side (R-) chain that can ionize to a positive charge, derive a general expression in terms of measured pH and known pKa values ofα-carboxyl (pKca), α-amino (pKaa), and side group (pKRa), respectively, for the net charge of the amino acid.(e)…arrow_forwardGive the amino acid sequence in the following tetrapeptide using both 3-letter and 1-letter abbreviations for the amino acids. (Capitalize amino acid abbreviations appropriately.) ball & stick labels (Separate abbreviations with hyphens.) Sequence (3-letter abbreviations) Sequence (1-letter abbreviations) (Do not separate abbreviations with hyphens.)arrow_forwardWhat are the structures of the amino acids that result from the hydrolysis of all the peptide bonds in the perjide. CH(CH2 H HO NH2 ČOOH draw structure ... draw structure ... draw structure ... Left amino acid Middle amino acid Right amino acid DELLarrow_forward
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