The oxidation of 1 mol of glucose supplies enough metabolic energy to form 36 mol of ATP. Oxidation of 1 mol of a typical dietary fat like tristearin (C57H116O6) yields enough energy toform 458 mol of ATP. How many molecules of ATP can form per gram of (a) glucose; (b) tristearin?
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The oxidation of 1 mol of glucose supplies enough
gram of
(a) glucose;
(b) tristearin?
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Solved in 3 steps
- A camel hump contains 12 kg of triacylgylcerols. (a) Given that there are 0.491 moles of ATP per gram of fat, how many moles of ATP could be produced by the fat in the camel hump?(b) If the hydrolysis of ATP releases 7.3 kcal/mole, how many kilocalories are produced by the utilization of the fat?The ΔG°′ value for glucose-1-phosphate is -20.9 kJ/mol. If glucose and phosphate are both at 4.8 mM, what is the equilibrium concentration of glucose-1-phosphate?An individual weighing 68 kg jogging at 8 km/h for 30 minutes would burn 1138 kJ. How many moles of glucose would need to be metabolized to generate this required energy?
- Consider olive oil, an oil with a high percentage of fat derived from oleic acid (otherwise known as cis[18:1] fatty acid). a, Explain why such a structure may allow olive oil to be one of the "healthier" oils? b, why such a structure may allow olive oil to be a liquid at room temperature, while butter and lard are solid at room temperature? c, why such a structure may cause olive oil to be prone to oxidative damage upon exposure to air and heat?The breakdown of a complex carbohydrate into its monomeric unit can be described as an enzyme-catalyzed reaction that has a deltaG(∆G) of -90kcal/mol. Suppose you were to add triple the amount of enzyme into this reaction - what would be the ∆G of this reaction?Lactic Acid (shown below) is built up in the body during intense workouts as a result of glycolysis. Please denote if the compound is R or S. Also, explain at least two intermolecular forces it would exhibit. Would you expect this compound to be soluble in water?
- How many NTP molecules are required to synthesize glucose from each of the following compounds? (a) Glucose 6-phosphate (b) Fructose 1,6-bisphosphate (c) Two molecules of oxaloacetate (d) Two molecules of dihydroxyacetone phosphateWhich of the following compounds would you expect to liberate the least free energy when hydrolyzed? Explain. a. ATP b. ADP c. AMP d. phosphoenolpyruvate e. phosphocreatineIf palmitic acid is subjected to complete combustion in a bomb calorimeter, one can calculate a standard free energy of combustion of 9788 kJ/mol. From the ATP yield of palmitate oxidation, what is the metabolic efficiency of the biological oxidation, in terms of kilojoules saved as ATP per kilojoule released? (Ignore the cost of fatty acid activation.)
- What are the typical fatty acid chains found in phosphoglycerides, and why do their carbon atom counts vary by multiples of two?Arrange the following molecules in order of their biological energy content per mole: glucose, caproic acid (C10), sucrose (C12), myristic acid (C14) Write the structural equation for the transamination reaction that involves threonine and pyruvate as pair of reactants [provide the structure of the AA and pyruvate)Gastric juice (pH 1.5) is produced by pumping HCl from blood plasma (pH 7.4) into the stomach. Calculate the amount of free energy required to concentrate the H+ in 1 L of gastric juice at 37 °C. Under cellular conditions,how many moles of ATP must be hydrolyzed to provide this amount of free energy? The free-energy change for ATP hydrolysis under cellular conditions is about −58 kJ/mol . Ignore the effects of the transmembrane electrical potential.