Fundamentals of Biochemistry: Life at the Molecular Level
5th Edition
ISBN: 9781118918401
Author: Donald Voet, Judith G. Voet, Charlotte W. Pratt
Publisher: WILEY
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Chapter 27, Problem 26CQ
Summary Introduction
To explain: The antibiotic effect of paromomycin.
Concept introduction: The complex molecules which are made up of ribosomal RNA molecules where the protein synthesis takes place are called ribosomes. tRNA is transfer RNA that acts as a
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Chapter 27 Solutions
Fundamentals of Biochemistry: Life at the Molecular Level
Ch. 27 - Prob. 1ECh. 27 - Prob. 2ECh. 27 - Prob. 3ECh. 27 - 4. Which amino acids arc specified by codons that...Ch. 27 - 5. In the genetic code used by mitochondria in...Ch. 27 - 6. Some mitochondria use a second codon, in...Ch. 27 - 7. The protein Xpot transports tRNAs out of the...Ch. 27 - 8. The enzyme thiouridylase converts certain tRNA...Ch. 27 - Prob. 9ECh. 27 - 10. Some mutations that do not alter the identity...
Ch. 27 - Prob. 11ECh. 27 - Prob. 12ECh. 27 - Prob. 13ECh. 27 - Prob. 14ECh. 27 - Prob. 15ECh. 27 - Prob. 16ECh. 27 - Prob. 17ECh. 27 - Prob. 18ECh. 27 - 19. Cells can make certain oligopeptides using...Ch. 27 - 20. The peptidyl transferase activity of the...Ch. 27 - 21. One cause of the neurodegeneratise disease...Ch. 27 - Prob. 22CQCh. 27 - 23. A double-stranded fragment of viral DNA, one...Ch. 27 - 24. The sequence of the sense strand of a...Ch. 27 - Prob. 25CQCh. 27 - Prob. 26CQCh. 27 - Prob. 27CQCh. 27 - 28. It has been proposed that residue A2486 is...Ch. 27 - 29. Explain why a minimum of 32 tRNAs are required...Ch. 27 - 30. Under conditions of nutrient starvation,...Ch. 27 - 31. All cells contain an enzyme called...Ch. 27 - Prob. 32CQCh. 27 - Prob. 33CQCh. 27 - Prob. 34CQCh. 27 - Prob. 35CQCh. 27 - Prob. 36CQCh. 27 - Prob. 1MTE
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- 17. Which one of the compounds below is the major organic product obtained from the following series of reactions? CI benzyl alcohol OH PBr3 Mg 1. CO2 SOCl2 ? ether 2. H+, H₂O CI Cl HO OH CI Cl A B C D Earrow_forward14. What is the IUPAC name of this compound? A) 6-hydroxy-4-oxohexanenitrile B) 5-cyano-3-oxo-1-pentanol C) 5-cyano-1-hydroxy-3-pentanone D) 1-cyano-5-hydroxy-3-pentanone E) 5-hydroxy-3-oxopentanenitrile HO. CNarrow_forward13. What is the IUPAC name of this compound? A) 5-hydroxy-3,3-dimethylpentanoic acid B) 3,3-dimethylpentanoic acid C) 3,3-dimethyl-1-oxo-1,5-pentanediol D) 1,5-dihydroxy-3,3-dimethylpentanal E) 4-hydroxy-2,2-dimethylbutanoic acid HO OHarrow_forward
- Help me understand how carbon disulfide leads to toxicity in the brain, using terms like distal axonopathy, neurofilaments, covalent cross-linking, adducts, etc.,...please intuitively explain what is happening and where and the effects of it. For example, I know that CS2 reacts with amide and sulfhydryl groups on proteins, but what proteins exactly and where are they located?arrow_forwardWhat is the standard free energy change (in kJ/mole) of the spontaneous reaction between Oxygen and NADH to form H2O2 and NAD+?arrow_forwardRedox Chemistry: Give standard free energy changes expected for the following reactions:-Succinate -> fumarate (using FAD/FADH2)-Oxaloacetate -> Malate (using NAD/NADH)-NADH --> NAD+ (using FMN/FMNH2)-CoQ --> CoQH2 (using Cytochrome C)arrow_forward
- Give examples of balanced redox reactions that match the following:-Catabolic-Anabolic-Oxidative-Reductivearrow_forwardIf there are 20uM of a GLUT2 transporter on the surface of a cell, each able to move 8 per second, and 50mM glucose outside of the cell, what is the flux into the cell in mM/sec?arrow_forwardA transporter is responsible for antiporting calcium and glucose. The transporter brings glucose into the cell and sends calcium out of the cell. If blood [calcium] = 2.55mM and intracellular [calcium] = 7uM, blood [glucose] = 5.2mM, and intracellular [glucose] = 40uM, what is the free energy of transport? Assume a membrane potential of 62mV (negative inside).arrow_forward
- An ATP-coupled transporter is used to import 1 phosphate from the extracellular environment. Intracellular phosphate exists at 65mM, while it is 2mM outside.Assume a free energy change of ATP hydrolysis of -42.7 kJ/mol. What is the net free energy change of the coupled reaction? Assume a membrane potential of 70mV.arrow_forwardAnother transporter brings 3 chloride ions into the cell. Outside, chloride has a concentration of 107mM, and 4mM inside the cell. Assuming a membrane potential of 62mV (negative inside), what is the free energy of transport of these ions?arrow_forwardFor the Oxaloacetate -> Malate reaction, assume the normal ratio of NAD/NADH, what is the maximum ratio of Malate/Oxaloacetate that will allow reaction progress?arrow_forward
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