Glucose is a carbohydrate central to energy metabolism. Glucose provides most of the energy to the brain and its levels are closely controlled in healthy individuals. Improper control of glucose levels is found in diabetes. Assume that the maximum number of ATPs is produced (38). At pH 7, and in the presence of excess Mg2+, how much of the energy in one mole of glucose is stored as ATP? kJ

Glucose is a carbohydrate central to energy metabolism. Glucose provides most of the energy to the brain and its levels are closely controlled in healthy individuals. Improper control of glucose levels is found in diabetes. Assume that the maximum number of ATPs is produced (38). At pH 7, and in the presence of excess Mg2+, how much of the energy in one mole of glucose is stored as ATP? kJ

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter2: Cell Physiology

Section: Chapter Questions

Problem 2SQE

See similar textbooks

Similar questions

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.
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?
If, in addition to the constraints on glucose concentration listed previously, we have in the liver cell ATP concentration = 5 mM and ADP concentration = 5 mM , what is the theoretical concentration of glucose-6-phosphate at equilibrium at pH=7.4 and 37 ∘C ? Express your answer to three significant figures and include the appropriate units. Please type answer note write by hend.
The hydrolysis of the phosphoester bond of ATP releases a large amount of free energy. True or false?
Adults who participate in vigourous physical exercise need around 160 g of carbohydrate per day but just approximately 20 mg of niacin for good nutrition. How do you interpret the finding in light of niacin's involvement in glycolysis?
How many ATP molecules could maximally be generated from one molecule of glucose, if the complete oxidation of 1 mole of glucose to CO2 and H2O yields 686 kcal of free energy and the useful chemical energy available in the high- energy phosphate bond of 1 mole of ATP is 12 kcal?
Adults engaged in strenuous physical activity require an intake of about 160 g of carbohydrate daily but only about 20 mg of niacin for optimal nutrition. Given the role of niacin in glycolysis, how do you explain the observation?
Consider the following chemical reaction: Glucose + ATP → Glucose-6-Phosphate + ADP + Pi Given the following information, calculate the actual free energy change (G’) of this reaction. G’ of Glucose + ATP → Glucose-6-Phosphate + ADP + Pi = -16.7 kJ/mol [Glucose] = 5.0 mM [ATP] = 1.85 mM [Glucose-6-Phosphate] = 0.083 mM [ADP] = 0.14 mM [Pi] = 1.0 mM Temperature = 37 C R (Gas Constant) = 8.314 J/mol•K
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?
if an 8.4-oz (250 mL) energy drink can has 27 grams of sugar, calculate the moles of ATP produced in the body when 1 oz of the drink is consumed assuming all the sugars in 1 oz of the drink are composed of only glucose.
1) An average middle-aged person weighing 90 kg (200 lb.) contains 15 % body fat stored in adipose tissue. a) Calculate the amount of energy stored as fat in this person in kilojoules, assuming that energy yield from fat is 37 kJ/g. b) If this same amount of energy were stored in hydrated glycogen rather than fat (hydrated glycogen has an energy yield of 6 kJ/g), how much would the person weight in kilograms and in pounds?
How many total ATP are REQUIRED to make 2 molecules of glucose in the liver via GNG starting with 4 molecules of 3PG?