BIOCHEMISTRY (LL)
9th Edition
ISBN: 9781337805100
Author: Campbell
Publisher: CENGAGE L
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Chapter 16, Problem 32RE
REFLECT AND APPLY Pectin, which occurs in plant cell walls, exists in nature as a
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Draw the predominant form of
glutamic acid at pH = 8.4. The pKa
of the side chain is 4.1. Include
proper stereochemistry.
HO
H2N
OH
pH = 8.4
How would I draw this?
Calculate the standard change in Gibbs free energy, AGrxn, for the given reaction at 25.0 °C. Consult the table of
thermodynamic properties for standard Gibbs free energy of formation values.
NH,Cl(s) →NH; (aq) + C1 (aq)
AGrxn
-7.67
Correct Answer
Determine the concentration of NH+ (aq) if the change in Gibbs free energy, AGrxn, for the reaction is -9.27 kJ/mol.
6.49
[NH+]
Incorrect Answer
kJ/mol
M
Chapter 16 Solutions
BIOCHEMISTRY (LL)
Ch. 16 - RECALL Define the following terms: polysaccharide,...Ch. 16 - RECALL Name which, if any, of the following are...Ch. 16 - RECALL Name which, if any, of the following groups...Ch. 16 - RECALL What is the difference between an...Ch. 16 - RECALL How many possible epimers of D-glucose...Ch. 16 - RECALL Why are furanoses and pyranoses the most...Ch. 16 - RECALL How many chiral centers are there in the...Ch. 16 - REFLECT AND APPLY Following are Fischer...Ch. 16 - REFLECT AND APPLY The sugar alcohol often used in...Ch. 16 - REFLECT AND APPLY Consider the structures of...
Ch. 16 - REFLECT AND APPLY Two sugars are epimers of each...Ch. 16 - REFLECT AND APPLY How does the cyclization of...Ch. 16 - REFLECT AND APPLY Convert the following Haworth...Ch. 16 - REFLECT AND APPLY Convert each of the following...Ch. 16 - REFLECT AND APPLY Starting with a Fischer...Ch. 16 - REFLECT AND APPLY Starting with the open-chain...Ch. 16 - RECALL What is unusual about the structure of...Ch. 16 - RECALL What is the chemical difference between a...Ch. 16 - RECALL Define the term reducing sugar.Ch. 16 - BIOCHEMICAL CONNECTIONS What are the structural...Ch. 16 - RECALL Name two differences between sucrose and...Ch. 16 - REFLECT AND APPLY Draw a Haworth projection for...Ch. 16 - BIOCHEMICAL CONNECTIONS What is the metabolic...Ch. 16 - REFLECT AND APPLY Draw Haworth projection formulas...Ch. 16 - BIOCHEMICAL CONNECTIONS A friend asks you why some...Ch. 16 - RECALL What are some of the main differences...Ch. 16 - RECALL How does chitin differ from cellulose in...Ch. 16 - RECALL How does glycogen differ from starch in...Ch. 16 - RECALL What is the main structural difference...Ch. 16 - RECALL What is the main structural difference...Ch. 16 - RECALL How do the cell walls of bacteria differ...Ch. 16 - REFLECT AND APPLY Pectin, which occurs in plant...Ch. 16 - REFLECT AND APPLY Advertisements for a food...Ch. 16 - REFLECT AND APPLY Explain how the minor structural...Ch. 16 - REFLECT AND APPLY All naturally occurring...Ch. 16 - REFLECT AND APPLY An amylose chain is 5000 glucose...Ch. 16 - REFLECT AND APPLY Suppose that a polymer of...Ch. 16 - REFLECT AND APPLY Glycogen is highly branched....Ch. 16 - REFLECT AND APPLY No animal can digest cellulose....Ch. 16 - REFLECT AND APPLY How does the presence of -bonds...Ch. 16 - REFLECT AND APPLY How do the sites of cleavage of...Ch. 16 - BIOCHEMICAL CONNECTIONS What is the benefit of...Ch. 16 - REFLECT AND APPLY How would you expect the active...Ch. 16 - REFLECT AND APPLY Would you expect cross-linking...Ch. 16 - REFLECT AND APPLY Compare the information in the...Ch. 16 - REFLECT AND APPLY Why is it advantageous that...Ch. 16 - REFLECT AND APPLY Why is the polysaccharide chitin...Ch. 16 - REFLECT AND APPLY Could bacterial cell walls...Ch. 16 - REFLECT AND APPLY Some athletes eat diets high in...Ch. 16 - Prob. 50RECh. 16 - REFLECT AND APPLY Blood samples for research or...Ch. 16 - REFLECT AND APPLY Based on what you know about...Ch. 16 - RECALL What are glycoproteins? What are some of...Ch. 16 - BIOCHEMICAL CONNECTIONS Briefly indicate the role...
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- draw 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_forwarddraw in the structure of each amino acid (as L-amino acids) using the Fischer projection style. an example has been includedarrow_forwarddraw in the structure of each amino acid (as L-amino acids) using the Fischer projection style. an example has been includedarrow_forward
- Draw out the following peptide H-R-K-E-D at physiological pH (~7.4). Make sure toreference table 3.1 for pKa values.arrow_forwardThe 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_forward
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