BIOCHEMISTRY (LOOSELEAF)-W/ACCESS
9th Edition
ISBN: 9781319425784
Author: BERG
Publisher: Macmillan Higher Education
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Chapter 27, Problem 18P
Interpretation Introduction
(a)
Interpretation:
RQ value for glucose oxidation and tripalmitoylglycerol should be calculated.
Concept introduction:
RQ (respiratory quotient) value is the ratio of the volume of carbon dioxide produced to the amount of oxygen gas required in respiration process over a fixed period of time. Its value can be zero, less than one, one, and more than one.
Interpretation Introduction
(b)
Interpretation:
The use of RQ measurements of different energy sources during intense exercise should be determined.
Concept introduction:
RQ (respiratory quotient) value is the ratio of the volume of carbon dioxide produced to the amount of oxygen gas required in the respiration process over a fixed period of time. Its value can be zero, less than one, one, and more than one.
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a. Some of the acetyl-CoA used in the citric acid cycle is produced from pyruvate.
List the reactants and products of this reaction.
The reactants are pyruvate and
The products are acetyl-CoA and
In the process, a(n)
is
to
b. Name an enzyme complex that catalyzes this reaction and list its negative effectors.
is the enzyme complex that catalyzes this reaction. Its negative effectors are
and
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Chapter 27 Solutions
BIOCHEMISTRY (LOOSELEAF)-W/ACCESS
Ch. 27 - Prob. 1PCh. 27 - Prob. 2PCh. 27 - Prob. 3PCh. 27 - Prob. 4PCh. 27 - Prob. 5PCh. 27 - Prob. 6PCh. 27 - Prob. 7PCh. 27 - Prob. 8PCh. 27 - Prob. 9PCh. 27 - Prob. 10P
Ch. 27 - Prob. 11PCh. 27 - Prob. 12PCh. 27 - Prob. 13PCh. 27 - Prob. 14PCh. 27 - Prob. 15PCh. 27 - Prob. 16PCh. 27 - Prob. 17PCh. 27 - Prob. 18PCh. 27 - Prob. 19PCh. 27 - Prob. 20PCh. 27 - Prob. 21PCh. 27 - Prob. 22PCh. 27 - Prob. 23PCh. 27 - Prob. 24PCh. 27 - Prob. 25PCh. 27 - Prob. 26PCh. 27 - Prob. 27PCh. 27 - Prob. 28PCh. 27 - Prob. 29PCh. 27 - Prob. 30PCh. 27 - Prob. 31PCh. 27 - Prob. 32PCh. 27 - Prob. 33PCh. 27 - Prob. 34PCh. 27 - Prob. 35PCh. 27 - Prob. 36PCh. 27 - Prob. 37PCh. 27 - Prob. 38PCh. 27 - Prob. 39PCh. 27 - Prob. 40PCh. 27 - Prob. 41PCh. 27 - Prob. 42PCh. 27 - Prob. 43PCh. 27 - Prob. 44PCh. 27 - Prob. 45PCh. 27 - Prob. 46PCh. 27 - Prob. 47PCh. 27 - Prob. 48PCh. 27 - Prob. 49PCh. 27 - Prob. 50PCh. 27 - Prob. 51PCh. 27 - Prob. 52PCh. 27 - Prob. 53P
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- A. Briefly explain the signaling pathway by which the liver coverts the stored carbohydrate to glucose and transports it to blood at low blood glucose level. In your answer, the signal pathway, source of glucose, key enzymes and proteins should be described. B. The diagram shows some of the reactions of respiration. Glucose Triose phosphate Pyruvate Lactate Acetylcoenzyme A (i) In the diagram on the Answer Sheet, draw and label by arrow to show the reaction that (a) requires ATP, and (b) produces CO2. (ii) In what condition and why is pyruvate converted to lactate?arrow_forwardShow sequentially, the total ATP Yield and the net ATP Yield in the complete oxidation of Glucose (from Glycolysis to Oxidative Phosphorylation) in the Muscle and Heart Tissues of a man. Indicate the differences in the ATP yield in both tissues.arrow_forwarda) describe the overall reaction catalyzed by the pyruvate dehydrogenase Situational Problems I. Oxidative decarboxylation of pyruvate and the TCA cycle in muscles are stimulated by increased aerobic excrcise. These processes operate only when O, is present, although oxygen does not participate directly in these processes. Explain why oxidative decarboxylation of pyruvate is activated under aerobic conditions. For the answer: a) describe the overall reaction catalyzed by the pyruvate complex (PDH) and its regulation; b) outline the intermediates and enzymes of the TCA cycle; c) explain the relationship between the reactions of PDH and the TCA cycle and the respiratory chain.arrow_forward
- Calculate the net ATP yield from monounsaturated oleic acid (18:1).Hint: Remember the step that bypasses acyl-CoA dehydrogenase.arrow_forwardDiscuss how the isozymic forms of acetyl CoA carboxylase regulate fatty acid metabolism. Explain the reciprocal regulation of fatty acid production and breakdown, as well as the numerous mechanisms that are used to accomplish this control.arrow_forwardExplain well. Asaparrow_forward
- Long explanations are not needed. Direct answers would suffice. a. Ribose-5-phosphate is produced by oxidative decarboxylation of 6-phosphogluconate catalyzed by the enzyme glucose-6-phosphate dehydrogenase. I. True II. False b. The pentose phosphate pathway occurs in the mitochondrion of tissues actively engaged in synthesis of fatty acids. I. True II. Falsearrow_forwardCalculate the net ATP yield from oleic acid (18:1 D9 ). Hint: Remember the step that bypasses acyl-CoA dehydrogenase.arrow_forwardexplain with proper details please. Compare the net production of ATP from four molecules of glucose (4 x C6) with that from one molecule of n-Tetracosanoic acid (Lignoceric acid, C24) as a result of oxidative metabolism (show your work). As a storage molecule, which is more energy efficient and why?arrow_forward
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