Biochemistry, The Molecular Basis of Life, 6th Edition
6th Edition
ISBN: 9780190259204
Author: Trudy McKee, James R. McKee
Publisher: Oxford University Press
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Chapter 5, Problem 5RQ
Summary Introduction
To review:
The definition of the following biological terminologies:
(a) Optical isomer
(b) Isoelectric point
(c) Peptide bond
(d) Disulfide Bridge
(e) Schiff base
Introduction:
Amino acid residues make the second largest compound of human muscles and other animal tissues, after water. They mainly involve 22 proteinogenic amino acids, which join peptide chains for synthesis of a wide array of proteins.
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Which type of enzyme catalyses the following reaction? oxidoreductase, transferase, hydrolase, lyase, isomerase, or ligase.
+NH+
CO₂
+P
H₂N
+ ATP
H₂N
NH₂
+ADP
Which type of enzyme catalyses the following reaction? oxidoreductase, transferase, hydrolase, lyase, isomerase, or ligase.
Chapter 5 Solutions
Biochemistry, The Molecular Basis of Life, 6th Edition
Ch. 5 - Prob. 1QCh. 5 - Prob. 2QCh. 5 - Prob. 3QCh. 5 - Prob. 4QCh. 5 - Prob. 5QCh. 5 - Prob. 6QCh. 5 - Prob. 7QCh. 5 - Prob. 8QCh. 5 - Prob. 9QCh. 5 - Prob. 10Q
Ch. 5 - Prob. 11QCh. 5 - Prob. 12QCh. 5 - Prob. 1RQCh. 5 - Prob. 2RQCh. 5 - Prob. 3RQCh. 5 - Prob. 4RQCh. 5 - Prob. 5RQCh. 5 - Prob. 6RQCh. 5 - Prob. 7RQCh. 5 - Prob. 8RQCh. 5 - Prob. 9RQCh. 5 - Prob. 10RQCh. 5 - Prob. 11RQCh. 5 - Prob. 12RQCh. 5 - Prob. 13RQCh. 5 - Prob. 14RQCh. 5 - Prob. 15RQCh. 5 - Prob. 16RQCh. 5 - Prob. 17RQCh. 5 - Prob. 18RQCh. 5 - Prob. 19RQCh. 5 - Prob. 20RQCh. 5 - Prob. 21RQCh. 5 - Prob. 22RQCh. 5 - Prob. 23RQCh. 5 - Prob. 24RQCh. 5 - Prob. 25RQCh. 5 - Prob. 26RQCh. 5 - Prob. 27RQCh. 5 - Prob. 28RQCh. 5 - Prob. 29RQCh. 5 - Prob. 30RQCh. 5 - Prob. 31RQCh. 5 - Prob. 32FBCh. 5 - Prob. 33FBCh. 5 - Prob. 34FBCh. 5 - Prob. 35FBCh. 5 - Prob. 36FBCh. 5 - Prob. 37FBCh. 5 - Prob. 38FBCh. 5 - Prob. 39FBCh. 5 - Prob. 40FBCh. 5 - Prob. 41FBCh. 5 - Prob. 42SACh. 5 - Prob. 43SACh. 5 - Prob. 44SACh. 5 - Prob. 45SACh. 5 - Prob. 46SACh. 5 - Prob. 47TQCh. 5 - Prob. 48TQCh. 5 - Prob. 49TQCh. 5 - Prob. 50TQCh. 5 - Prob. 51TQCh. 5 - Prob. 52TQCh. 5 - Prob. 53TQCh. 5 - Prob. 54TQCh. 5 - Prob. 55TQCh. 5 - Prob. 56TQCh. 5 - Prob. 57TQCh. 5 - Prob. 58TQCh. 5 - Prob. 59TQCh. 5 - Prob. 60TQCh. 5 - Prob. 61TQCh. 5 - Prob. 62TQCh. 5 - Prob. 63TQCh. 5 - Prob. 64TQCh. 5 - Prob. 65TQCh. 5 - Prob. 66TQCh. 5 - Prob. 67TQCh. 5 - Prob. 68TQCh. 5 - Prob. 69TQCh. 5 - Prob. 70TQ
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- Pyruvate is accepted into the TCA cycle by a “feeder” reaction using the pyruvatedehydrogenase complex, resulting in acetyl-CoA and CO2. Provide a full mechanismfor this reaction utilizing the TPP cofactor. Include the roles of all cofactors.arrow_forwardB- Vitamins are converted readily into important metabolic cofactors. Deficiency inany one of them has serious side effects. a. The disease beriberi results from a vitamin B 1 (Thiamine) deficiency and ischaracterized by cardiac and neurological symptoms. One key diagnostic forthis disease is an increased level of pyruvate and α-ketoglutarate in thebloodstream. How does this vitamin deficiency lead to increased serumlevels of these factors? b. What would you expect the effect on the TCA intermediates for a patientsuffering from vitamin B 5 deficiency? c. What would you expect the effect on the TCA intermediates for a patientsuffering from vitamin B 2 /B 3 deficiency?arrow_forwardDraw the Krebs Cycle and show the entry points for the amino acids Alanine,Glutamic Acid, Asparagine, and Valine into the Krebs Cycle - (Draw the Mechanism). How many rounds of Krebs will be required to waste all Carbons of Glutamic Acidas CO2?arrow_forward
- Sodium fluoroacetate (FCH 2CO2Na) is a very toxic molecule that is used as rodentpoison. It is converted enzymatically to fluoroacetyl-CoA and is utilized by citratesynthase to generate (2R,3S)-fluorocitrate. The release of this product is a potentinhibitor of the next enzyme in the TCA cycle. Show the mechanism for theproduction of fluorocitrate and explain how this molecule acts as a competitiveinhibitor. Predict the effect on the concentrations of TCA intermediates.arrow_forwardIndicate for the reactions below which type of enzyme and cofactor(s) (if any) wouldbe required to catalyze each reaction shown. 1) Fru-6-P + Ery-4-P <--> GAP + Sed-7-P2) Fru-6-P + Pi <--> Fru-1,6-BP + H2O3) GTP + ADP <--> GDP + ATP4) Sed-7-P + GAP <--> Rib-5-P + Xyl-5-P5) Oxaloacetate + GTP ---> PEP + GDP + CO 26) DHAP + Ery-4-P <--> Sed-1,7-BP + H 2O7) Pyruvate + ATP + HCO3- ---> Oxaloacetate + ADP + Piarrow_forwardTPP is also utilized in transketolase reactions in the PPP. Give a mechanism for theTPP-dependent reaction between Xylulose-5-phosphate and Ribose-5-Phosphate toyield Glyceraldehyde-3-phosphate and Sedoheptulose-7-Phosphate.arrow_forward
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