Biochemistry: Concepts and Connections (2nd Edition)
2nd Edition
ISBN: 9780134641621
Author: Dean R. Appling, Spencer J. Anthony-Cahill, Christopher K. Mathews
Publisher: PEARSON
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Chapter 4, Problem 10P
Predict the structure of a cruciform that could be formed from this oligonucleotide.
5' GCAATCGTACGATTAGGGC
3' CGTTAGCATGCTAATCCCG
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Determine the concentration of NH+ (aq) if the change in Gibbs free energy, AGrxn, for the reaction is -9.27 kJ/mol.
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What are some topics of interest that neurotoxicologists study? For example, toxin-induced seizures, brain death, and such along those lines?
Chapter 4 Solutions
Biochemistry: Concepts and Connections (2nd Edition)
Ch. 4 - Prob. 1PCh. 4 - What is the difference between a nucleoside...Ch. 4 - pppApCpCpupApGpApu-OH a. Using the straight-chain...Ch. 4 - Shown is a representation of a molecule being...Ch. 4 - Base analysis of DNA from maize (com) shows it to...Ch. 4 - Using the pKa data in Table 4.1 and the...Ch. 4 - For some DNAs, it is possible to separate the two...Ch. 4 - Refer to Figure 4.15, which presents the...Ch. 4 - Suppose that you centrifuged a transfer RNA...Ch. 4 - Predict the structure of a cruciform that could be...
Ch. 4 - DNA from a newly discovered virus was purified,...Ch. 4 - Would you expect Neurospora crassa DNA to have a...Ch. 4 - A circular double-stranded DNA molecule contains...Ch. 4 - The gel electrophoresis pattern in Figure 4.23 was...Ch. 4 - 15. DNA polymerase requires both a template, to be...Ch. 4 - Prob. 16PCh. 4 - Prob. 17PCh. 4 - a. What two enthalpic factors stabilize DNA in...Ch. 4 - 19.
a. The plasmid pBR322 (4362 base pairs) was...Ch. 4 - Prob. 20PCh. 4 - What DNA sequence feature is required for a...
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- What are "endpoints" in toxicology exactly? Please give an intuitive easy explanationarrow_forwardFura-2 Fluorescence (Arbitrary Unit) 4500 4000 3500 3000 2500 2000 1500 1000 500 [Ca2+]=2970nM, 25°C [Ca2+] 2970nM, 4°C [Ca2+]=0.9nM, 25°C [Ca2+] = 0.9nM, 4°C 0 260 280 300 340 360 380 400 420 440 Wavelength (nm) ← < The figure on the LHS shows the excitation spectra of Fura-2 (Em = 510 nm) in 2 solutions with two different Ca2+ ion concentration as indicated. Except for temperature, the setting for excitation & signal acquisition was identical.< ப a) The unit in Y-axis is arbitrary (unspecified). Why? < < b) Compare & contrast the excitation wavelength of the Isosbestic Point of Fura-2 at 25 °C & 4 °C. Give a possible reason for the discrepancy. < c) The fluorescence intensity at 25 °C & 4 °C are different. Explain why with the concept of electronic configuration. <arrow_forwarddraw in the structure of each amino acid (as L-amino acids) using the Fischer projection style. an example has been included. Draw the structure for glycine, alanine, valine, isoleucine, methionine, proline, phenylalanine, tryptophan, serine, threonine, asparagine, glutamine, lysine, arginine, aspartic acid, glutamic acid, histidine, tyrosine, cysteinearrow_forward
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- The table provides the standard reduction potential, E', for relevant half-cell reactions. Half-reaction E'° (V) Oxaloacetate² + 2H+ + 2e malate²- -0.166 Pyruvate + 2H+ + 2e → lactate -0.185 Acetaldehyde + 2H+ + 2e¯ →→→ ethanol -0.197 NAD+ + H+ + 2e--> NADH -0.320 NADP+ + H+ + 2e →→ NADPH Acetoacetate + 2H+ + 2e¯ - -0.324 B-hydroxybutyrate -0.346 Which of the reactions listed would proceed in the direction shown, under standard conditions, in the presence of the appropriate enzymes? Malate + NAD+ oxaloacetate + NADH + H+ Malate + pyruvate oxaloacetate + lactate Pyruvate + NADH + H+ lactate + NAD+ Pyruvate + p-hydroxybutyrate lactate + acetoacetate Acetaldehyde + succinate ethanol + fumerate Acetoacetate + NADH + H+ → B-hydroxybutyrate + NAD+arrow_forwardArrange the four structures in order from most reduced to most oxidized. Most reduced R-CH2-CH3 R-CH2-CH₂-OH R-CH,-CHO R-CH₂-COO Most oxidizedarrow_forwardfor each pair of biomolecules, identify the type of reaction (oxidation-reduction, hydrolysis, isomerization, group transfer, or nternal rearrangement) required to convert the first molecule to the second. In each case, indicate the general type of enzyme and cofactor(s) c reactants required, and any other products that would result. R-CH-CH-CH-C-S-COA A(n) A(n) A(n) A(n) Palmitoyl-CoA R-CH-CH=CH-C-S-CoA ° trans-A-Enoyl-CoA reaction converts palmitoyl-CoA to trans-A2-enoyl-CoA. This reaction requires and also produces Coo HN-C-H CH₂ CH₂ CH CH CH, CH, L-Leucine CH, CH, D-Leucine 8/6881 COO HÌNH: reaction converts L-leucine to D-leucine. This reaction is catalyzed by a(n) H-C-OH H-C-OH C=0 HO-C-H HO-C-H H-C-OH H-C-OH H-C-OH CH,OH Glucose H-C-OH CH,OH Fructose OH OH OH CH-C-CH₂ reaction converts glucose to fructose. This reaction is catalyzed by a(n) OH OH OPO I CH-C-CH H Glycerol Glycerol 3-phosphate H reaction converts glycerol to glycerol 3-phosphate. This reaction requires H,N- H,N H…arrow_forward
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