Biochemistry
9th Edition
ISBN: 9781305961135
Author: Mary K. Campbell, Shawn O. Farrell, Owen M. McDougal
Publisher: Cengage Learning
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Chapter 7, Problem 16RE
RECALL With the concerted model, what conditions favor greater cooperativity?
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Chapter 7 Solutions
Biochemistry
Ch. 7 - RECALL What features distinguish enzymes that...Ch. 7 - RECALL What is the metabolic role of aspartate...Ch. 7 - RECALL What molecule acts as a positive effector...Ch. 7 - RECALL Is the term KM used with allosteric...Ch. 7 - Prob. 5RECh. 7 - Prob. 6RECh. 7 - RECALL What is a homotropic effect? What is a...Ch. 7 - RECALL What is the structure of ATCase?Ch. 7 - RECALL How is the cooperative behavior of...Ch. 7 - RECALL Does the behavior of allosteric enzymes...
Ch. 7 - RECALL Does the behavior of allosteric enzymes...Ch. 7 - RECALL Explain what is meant by K0.5.Ch. 7 - REFLECT AND APPLY Explain the experiment used to...Ch. 7 - RECALL Distinguish between the concerted and...Ch. 7 - RECALL Which allosteric model can explain negative...Ch. 7 - RECALL With the concerted model, what conditions...Ch. 7 - Prob. 17RECh. 7 - Prob. 18RECh. 7 - Prob. 19RECh. 7 - Prob. 20RECh. 7 - Prob. 21RECh. 7 - BIOCHEMICAL CONNECTIONS How does Valium work?Ch. 7 - Prob. 23RECh. 7 - Prob. 24RECh. 7 - RECALL What is the function of a protein kinase?Ch. 7 - RECALL What amino acids are often phosphorylated...Ch. 7 - REFLECT AND APPLY What are some possible...Ch. 7 - REFLECT AND APPLY Explain how phosphorylation is...Ch. 7 - REFLECT AND APPLY Explain how glycogen...Ch. 7 - Prob. 30RECh. 7 - Prob. 31RECh. 7 - RECALL Name three proteins that are subject to the...Ch. 7 - Prob. 33RECh. 7 - RECALL What are caspases?Ch. 7 - REFLECT AND APPLY Explain why cleavage of the bond...Ch. 7 - REFLECT AND APPLY Why is it necessary or...Ch. 7 - Prob. 37RECh. 7 - Prob. 38RECh. 7 - Prob. 39RECh. 7 - RECALL What are the two essential amino acids in...Ch. 7 - RECALL Why does the enzyme reaction for...Ch. 7 - REFLECT AND APPLY Briefly describe the role of...Ch. 7 - REFLECT AND APPLY Explain the function of...Ch. 7 - REFLECT AND APPLY Explain why the second phase of...Ch. 7 - Prob. 45RECh. 7 - REFLECT AND APPLY An inhibitor that specifically...Ch. 7 - REFLECT AND APPLY What properties of metal ions...Ch. 7 - RECALL In biochemistry mechanisms, what group is...Ch. 7 - Prob. 49RECh. 7 - REFLECT AND APPLY Explain the difference between...Ch. 7 - Prob. 51RECh. 7 - Prob. 52RECh. 7 - Prob. 53RECh. 7 - REFLECT AND APPLY What is the relationship between...Ch. 7 - Prob. 55RECh. 7 - BIOCHEMICAL CONNECTIONS Why can cocaine addiction...Ch. 7 - Prob. 57RECh. 7 - Prob. 58RECh. 7 - RECALL How are coenzymes related to vitamins?Ch. 7 - RECALL What type of reaction uses vitamin B6?Ch. 7 - Prob. 61RECh. 7 - Prob. 62RECh. 7 - Prob. 63RECh. 7 - BIOCHEMICAL CONNECTIONS What are some of the ways...Ch. 7 - Prob. 65RECh. 7 - Prob. 66RECh. 7 - Prob. 67RECh. 7 - Prob. 68RECh. 7 - Prob. 69RECh. 7 - Prob. 70RECh. 7 - Prob. 71RECh. 7 - Prob. 72RECh. 7 - Prob. 73RE
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- 2. Which one of the following alkenes undergoes the least exothermic hydrogenation upon treatment with H₂/Pd? A B C D Earrow_forward6. What is the IUPAC name of the following compound? A) (Z)-3,5,6-trimethyl-3,5-heptadiene B) (E)-2,3,5-trimethyl-1,4-heptadiene C) (E)-5-ethyl-2,3-dimethyl-1,5-hexadiene D) (Z)-5-ethyl-2,3-dimethyl-1,5-hexadiene E) (Z)-2,3,5-trimethyl-1,4-heptadienearrow_forwardConsider the reaction shown. CH2OH Ex. CH2 -OH CH2- Dihydroxyacetone phosphate glyceraldehyde 3-phosphate The standard free-energy change (AG) for this reaction is 7.53 kJ mol-¹. Calculate the free-energy change (AG) for this reaction at 298 K when [dihydroxyacetone phosphate] = 0.100 M and [glyceraldehyde 3-phosphate] = 0.00300 M. AG= kJ mol-1arrow_forward
- If the pH of gastric juice is 1.6, what is the amount of energy (AG) required for the transport of hydrogen ions from a cell (internal pH of 7.4) into the stomach lumen? Assume that the membrane potential across this membrane is -70.0 mV and the temperature is 37 °C. AG= kJ mol-1arrow_forwardConsider the fatty acid structure shown. Which of the designations are accurate for this fatty acid? 17:2 (48.11) 18:2(A9.12) cis, cis-A8, A¹¹-octadecadienoate w-6 fatty acid 18:2(A6,9)arrow_forwardClassify the monosaccharides. H-C-OH H. H-C-OH H-C-OH CH₂OH H-C-OH H-C-OH H-C-OH CH₂OH CH₂OH CH₂OH CH₂OH D-erythrose D-ribose D-glyceraldehyde Dihydroxyacetone CH₂OH CH₂OH C=O Answer Bank CH₂OH C=0 HO C-H C=O H-C-OH H-C-OH pentose hexose tetrose H-C-OH H-C-OH H-C-OH aldose triose ketose CH₂OH CH₂OH CH₂OH D-erythrulose D-ribulose D-fructosearrow_forward
- Fatty acids are carboxylic acids with long hydrophobic tails. Draw the line-bond structure of cis-A9-hexadecenoate. Clearly show the cis-trans stereochemistry.arrow_forwardThe formation of acetyl-CoA from acetate is an ATP-driven reaction: Acetate + ATP + COA Acetyl CoA+AMP+ PP Calculate AG for this reaction given that the AG for the hydrolysis of acetyl CoA to acetate and CoA is -31.4 kJ mol-1 (-7.5 kcal mol-¹) and that the AG for hydrolysis of ATP to AMP and PP; is -45.6 kJ mol-1 (-10.9 kcal mol-¹). AG reaction kJ mol-1 The PP, formed in the preceding reaction is rapidly hydrolyzed in vivo because of the ubiquity of inorganic pyrophosphatase. The AG for the hydrolysis of pyrophosphate (PP.) is -19.2 KJ mol-¹ (-4.665 kcal mol-¹). Calculate the AG° for the overall reaction, including pyrophosphate hydrolysis. AGO reaction with PP, hydrolysis = What effect does the presence of pyrophosphatase have on the formation of acetyl CoA? It does not affect the overall reaction. It makes the overall reaction even more endergonic. It brings the overall reaction closer to equilibrium. It makes the overall reaction even more exergonic. kJ mol-1arrow_forwardConsider the Haworth projections of ẞ-L-galactose and ẞ-L-glucose shown here. OH CH₂OH OH CH₂OH OH OH OH ОН OH он B-L-galactose B-L-glucose Which terms describe the relationship between these two sugars? epimers enantiomers anomers diastereomersarrow_forward
- Classify each characteristic as describing anabolism or catabolism. Anabolism Answer Bank Catabolism transforms fuels into cellular energy, such as ATP or ion gradients uses NADPH as the electron carrier synthesizes macromolecules requires energy inputs, such as ATP uses NAD+ as the electron carrier breaks down macromoleculesarrow_forwardThe table lists the standard free energies (AG") of hydrolysis of some phosphorylated compounds. Compound kJ mol-1 kcal mol-1 Phosphoenolpyruvate (PEP) -61.9 -14.8 1,3-Bisphosphoglycerate (1,3-BPG) -49.4 -11.8 Creatine phosphate -43.1 -10.3 ATP (to ADP) -30.5 -7.3 Glucose 1-phosphate -20.9 -5.0 Pyrophosphate (PP) -19.3 -4.6 Glucose 6-phosphate -13.8 -3.3 Glycerol 3-phosphate -9.2 -2.2 What is the direction of each of the reactions shown when the reactants are initially present in equimolar amounts? (a) ATP + H2O ADP + P (b) ATP + glycerol glycerol 3-phosphate + ADParrow_forwardCharacterize each term or phrase as pertaining to simple or facilitated diffusion. Simple diffusion Facilitated diffusion Answer Bank requires an input of free energy lipophilic molecules directly through membrane via channels polar molecules Na+arrow_forward
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