Organic Chemistry
9th Edition
ISBN: 9781305080485
Author: John E. McMurry
Publisher: Cengage Learning
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Question
Chapter 29.SE, Problem 46AP
Interpretation Introduction
a)100.0g of glucose
Interpretation:
To calculate how many grams of acetyl CoA (MW = 809.6 amu) are produced by catabolism by using the given substance.
Interpretation Introduction
b)100.0 g of palmitic acid
Interpretation:
To calculate how many grams of acetyl CoA (MW = 809.6 amu) are produced by catabolism by using the given substance.
Interpretation Introduction
c)100.0 g of maltose
Interpretation:
To calculate how many grams of acetyl CoA (MW = 809.6 amu) are produced by catabolism by using the given substance.
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The oxidation of 1 mol of glucose supplies enough meta-bolic energy to form 36 mol of ATP. Oxidation of 1 mol of a typ-ical dietary fat like tristearin (C₅₇H₁₁₆O₆) yields enough energyto form 458 mol of ATP. (a) How many molecules of ATP canform per gram of glucose? (b) Per gram of tristearin?
. Each gram of mammalian skeletal muscle consumes ATP at a rate of
about 1x 10-3 mol/min during contraction. Concentrations of
ATP and creatine phosphate in muscle are about 4 mM and 25 mM,
respectively, and the density of muscle tissue can be taken to be
about 1.2 g/cm'.
(a) How long could contraction continue using ATP alone?
(b) If all creatine phosphate were converted into ATP and utilized as
well, how long could contraction continue?
(c) What do these answers tell you?
Fatty acids cannot be converted into carbohydrates in the body as the
following reaction is not possible.
(A) Conversion of glucose-6-phosphate into glucose
(B) Fructose 1,6-bisphosphate to fructose-6-phosphate
O(C)
Transformation of acetyl CoA to pyruvate
(D) Formation of acetyl CoA from fatty acids
Chapter 29 Solutions
Organic Chemistry
Ch. 29.1 - Prob. 1PCh. 29.3 - Write the equations for the remaining passages of...Ch. 29.3 - Prob. 3PCh. 29.4 - Write a mechanism for the dehydration reaction of...Ch. 29.4 - Evidence for the role of acetate in fatty-acid...Ch. 29.4 - Does the reduction of acetoacetyl ACP in step 6...Ch. 29.5 - Prob. 7PCh. 29.5 - Look at the entire glycolysis pathway, and make a...Ch. 29.6 - Prob. 9PCh. 29.7 - Prob. 10P
Ch. 29.7 - Write mechanisms for step 2 of the citric acid...Ch. 29.7 - Prob. 12PCh. 29.8 - Prob. 13PCh. 29.9 - Write all the steps in the transamination reaction...Ch. 29.9 - What -keto acid is formed on transamination of...Ch. 29.9 - Prob. 16PCh. 29.SE - Prob. 17VCCh. 29.SE - Identify the following intermediate in the citric...Ch. 29.SE - The following compound is an intermediate in the...Ch. 29.SE - Prob. 20VCCh. 29.SE - In the pentose phosphate pathway for degrading...Ch. 29.SE - Prob. 22MPCh. 29.SE - One of the steps in the pentose phosphate pathway...Ch. 29.SE - One of the steps in the pentose phosphate pathway...Ch. 29.SE - Prob. 25MPCh. 29.SE - Prob. 26MPCh. 29.SE - Prob. 27MPCh. 29.SE - Prob. 28MPCh. 29.SE - Prob. 29MPCh. 29.SE - Prob. 30MPCh. 29.SE - Prob. 31MPCh. 29.SE - Prob. 32APCh. 29.SE - Prob. 33APCh. 29.SE - Prob. 34APCh. 29.SE - Prob. 35APCh. 29.SE - Prob. 36APCh. 29.SE - Prob. 37APCh. 29.SE - Prob. 38APCh. 29.SE - Prob. 39APCh. 29.SE - Prob. 40APCh. 29.SE - Prob. 41APCh. 29.SE - Prob. 42APCh. 29.SE - Prob. 43APCh. 29.SE - Prob. 44APCh. 29.SE - Prob. 45APCh. 29.SE - Prob. 46APCh. 29.SE - Prob. 47APCh. 29.SE - Prob. 48APCh. 29.SE - Prob. 49APCh. 29.SE - Prob. 50APCh. 29.SE - In glycerol metabolism, the oxidation of...Ch. 29.SE - Prob. 52APCh. 29.SE - Prob. 53APCh. 29.SE - Prob. 54APCh. 29.SE - In step 7 of fatty-acid biosynthesis (Figure...Ch. 29.SE - Prob. 56AP
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- 1- Find the amount of energy released (in kcal) by: • 1 gram of proteins • 1 gram of carbohydrates • 1 gram of fatsarrow_forwardWhen the following reaction reached equilibrium the concentration of glucose 1-phosphate is 34mM, and the concentration of glucose 6-phosphate is 190mM. At standard temperatures and pressure, calculate the Keq and the ΔGo' glucose 6-phosphate <---(phosphoglucoisomerase)---> glucose 1-phosphate Keq= ΔGo' =arrow_forwardGlucagon secretion increases (A) After a carbohydrate-rich meal (B) After a fat-rich meal (C) When blood glucose is high (D) When blood glucose is lowarrow_forward
- List the following in order of increasing tendency to accept electrons: (a) α-ketoglutarate + CO2 (yielding isocitrate); (b) oxaloacetate; (c) O2; (d) NADP+.arrow_forwardHow many molecules of water are produced by the electron transport chain during the complete aerobic oxidation of 1 molecule of stearate (C18:0) to CO2 and water?arrow_forwardThe net yield of ATP when 18 glucose molecules are metabolized during the process of glycolysis is a) 36 b) 72 c) 144 d) 216arrow_forward
- Why is the conversion of lactic acid from the blood into glucose in the liver in an organism’s best interest?arrow_forwardThe difference between catabolism and anabolism is that one involves the breakdown of larger molecules into smaller molecules and the other involves the formation of larger molecules from smaller molecules. True or False True Falsearrow_forward1. The following reactions can be coupled in the citrate cycle. Succinyl-CoA GDP + Pi. succinate + CoA GTP AGO'= -34.0 kJ/mol AGO'= 30.5 kJ/mol a) Write the net reaction. Calculate AGº for the coupled reaction. Is the reaction favorable? b) Write the equilibrium constant in terms of reactant and product concentration. Calculate the equilibrium constant, K, for the coupled reaction at 37°C. c) If the ratio of [GTP/[GDP] in the cell is 22, the [CoA]/[succinyl-CoA] ratio is 0.20, and the [Pi] is 1.3mM, determine the [Succinate] at equilibrium. (Pay attention to concentration units) d) If the [GTP/[GDP] falls to 4.0, calculate AG', keeping all other concentrations the same. If the [GTP/[GDP] increases to 75, calculate AG', keeping all other concentrations the same. e) What conclusion can you reach about the direction of the reaction under these cellular conditions? Is this reaction reversible or irreversible?arrow_forward
- What compound is produced during strenuous exercise, when the muscles are depleted of oxygen? pyruvate carbon dioxide lactate ethanol NADPHarrow_forwardConsider these three reactions and fill in the blanks below: Malate + NAD+ → Oxaloacetate + NADH + H+ AGO. = = +29.8 kJ/mol Oxaloacetate + acetyl-CoA –→ citrate + COASH AGO = -32.2 kJ/mol Citrate → isocitrate AGO. = +8.4 kJ/mol Under standard conditions the net formation of isocitrate from malate is thermodynamically with a standard free energy change (AGU) of kJ/mol.arrow_forward2. Calculate the ΔG°' for the following reaction: NAD:H + FAD → NAD+ + FAD:H2arrow_forward
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