Concept explainers
MATHEMATICAL Determine the values of
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Chapter 6 Solutions
Biochemistry
- REFLECT AND APPLY Why is the development of catalysis important to the development of life?arrow_forwardMATHEMATICAL For an enzyme that displays MichaelisMenten kinetics, what is the reaction velocity, V (as a percentage of Vmax), observed at the following values? (a) [S]=KM (b) [S]=0.5KM (c) [S]=0.1KM (d) [S]=2KM (e) [S]=10KMarrow_forwardREFLECT AND APPLY A model is proposed to explain the reaction catalyzed by an enzyme. Experimentally obtained rate data fit the model to within experimental error. Do these findings prove the model?arrow_forward
- MATHEMATICAL Calculate the ATP yield for the complete oxidation of one molecule of palmitic acid (16 carbons). How does this figure differ from that obtained for stearic acid (18 carbons)?arrow_forwardREFLECT AND APPLY Does the net gain of ATP in glycolysis differ when glycogen, rather than glucose, is the starting material? If so, what is the change?arrow_forwardREFLECT AND APPLY Why is it advantageous for a cell to have organelles? Discuss this concept from the standpoint of thermodynamics.arrow_forward
- REFLECT AND APPLLY What are the metabolic effects of not being able to produce the M subunit of phosphofructokinase?arrow_forwardREFLECT AND APPLY What is the relationship between a transition-state analog and the induced-fit model of enzyme kinetics?arrow_forwardREFLECT AND APPLY What is the role of citrate in the transport of acetyl groups from the mitochondrion to the cytosol?arrow_forward
- REFLECT AND APPLY Noncompetitive inhibition is a limiting case in which the effect of binding inhibitor has no effect on the affinity for the substrate and vice versa. Suggest what a LineweaverBurk plot would look like for an inhibitor that had a reaction scheme similar to that on page 159 (noncompetitive inhibition reaction), but where binding inhibitor lowered the affinity of EI for the substrate.arrow_forwardREFLECT AND APPLY (a) Where in an earlier chapter have we en- countered something comparable to the action of the acyl carrier protein (ACP) of fatty acid synthesis? (b) What is a critical feature of the action of the ACP?arrow_forwardREFLECT AND APPLY Suggest a reason why the cell membranes of bacteria grown at 20C tend to have a higher proportion of unsaturated fatty acids than the membranes of bacteria of the same species grown at 37C. In other words, the bacteria grown at 37C have a higher proportion of saturated fatty acids in their cell membranes.arrow_forward
- BiochemistryBiochemistryISBN:9781305961135Author:Mary K. Campbell, Shawn O. Farrell, Owen M. McDougalPublisher:Cengage Learning