Human Physiology: From Cells to Systems (MindTap Course List)
9th Edition
ISBN: 9781285866932
Author: Lauralee Sherwood
Publisher: Cengage Learning
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Chapter 2, Problem 3SQE
Summary Introduction
To calculate:
The number of calories produced per day in the form of ATP by a resting individual.
Introduction:
ATP is also known as Adenosine triphosphate. It is a molecule which stores energy within cells and is the chief energy currency of the cell. It is the final product of the processes of photophosphorylation,
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A total of 30.5 kJ mol-1 of free energy is needed to synthesise ATP from ADP and Pi when the reactants and products are at 1.0 M concentrations and the temperature is 25oC. Because the actual physiological concentrations of ATP, ADP, and Pi are not 1.0 M, and the temperature is 37oC, the free energy required to synthesise ATP under physiological conditions is actually ~ 46.2 kJ mol-1. A 68 kg adult requires an energy intake of 8,550 kJ of food per day (24 hours). Calculate the mass (in Kg) of ATP synthesised by a human adult in 24 hours, assuming that the percentage efficiency of converting inputted calories in ATP is 50%. What percentage of the body weight does this represent?
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Chapter 2 Solutions
Human Physiology: From Cells to Systems (MindTap Course List)
Ch. 2.1 - State the principles of the cell theory.Ch. 2.1 - Prob. 2CYUCh. 2.2 - State the functions of DNA and the different types...Ch. 2.2 - Prob. 2CYUCh. 2.2 - Prob. 3CYUCh. 2.3 - Prob. 1CYUCh. 2.3 - Discuss the structure and function of a ribosome.Ch. 2.3 - Prob. 3CYUCh. 2.3 - Prob. 4CYUCh. 2.4 - Describe the structure and functions of a Golgi...
Ch. 2.4 - Prob. 2CYUCh. 2.4 - Prob. 3CYUCh. 2.5 - Prob. 1CYUCh. 2.5 - Prob. 2CYUCh. 2.5 - Prob. 3CYUCh. 2.6 - Prob. 1CYUCh. 2.6 - Prob. 2CYUCh. 2.7 - Prob. 1CYUCh. 2.7 - Prob. 2CYUCh. 2.7 - Prob. 3CYUCh. 2.7 - Prob. 4CYUCh. 2.8 - Prob. 1CYUCh. 2.8 - Prob. 2CYUCh. 2.9 - Prob. 1CYUCh. 2.9 - Prob. 2CYUCh. 2.10 - List the three types of cytoskeletal elements and...Ch. 2.10 - Explain how motor proteins transport proteins...Ch. 2.10 - Prob. 3CYUCh. 2.10 - Prob. 4CYUCh. 2 - Prob. 1RECh. 2 - Prob. 2RECh. 2 - Prob. 3RECh. 2 - Prob. 4RECh. 2 - Prob. 5RECh. 2 - Prob. 6RECh. 2 - Prob. 7RECh. 2 - Prob. 8RECh. 2 - Prob. 9RECh. 2 - Using the answer code on the right, indicate which...Ch. 2 - Prob. 11RECh. 2 - Prob. 1UCCh. 2 - Prob. 2UCCh. 2 - Prob. 3UCCh. 2 - Compare exocytosis and endocytosis. Define...Ch. 2 - Prob. 5UCCh. 2 - Compare lysosomes with peroxisomes.Ch. 2 - Distinguish among cellular respiration, oxidative...Ch. 2 - Prob. 8UCCh. 2 - Prob. 9UCCh. 2 - Cells expend energy on what three categories of...Ch. 2 - Prob. 11UCCh. 2 - Prob. 1SQECh. 2 - Prob. 2SQECh. 2 - Prob. 3SQECh. 2 - Calculate the number of cells in the body of an...Ch. 2 - Prob. 5SQECh. 2 - Applying Clinical Reasoning Kevin S. and his wife...Ch. 2 - The stomach has two types of exocrine secretory...Ch. 2 - Prob. 2TAHLCh. 2 - Prob. 3TAHLCh. 2 - Why do you think a person is able to perform...Ch. 2 - Prob. 5TAHL
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- Assuming that all the glucose entering a muscle fiber is oxidized, as what molecule will the glucose carbon leave the body? Of glucose’s six carbons, two oxidized carbon byproducts will be produced by one enzyme, and four will be produced by a metabolic pathway. At which enzyme and pathway are these carbon-based bi-products produced?arrow_forwardThe Nutrition Facts label on most food products shows % daily values based on a food energy requirement of 8,360 kJ (2,000 kcal) at normal resting state. a) Assuming that the efficiency of converting food energy to ATP is 50%, calculate the mass of ATP (in kg) that is harvested daily by the human body from 8,360 kJ of food energy. A total of 30.5 kJ of energy is needed to synthesize one mole of ATP under standard conditions. The molar mass of ATP is 505 g/mol. b) For an average 68-kg (150 lbs.) human adult, calculate the % mass of extracted ATP (from your answer in 2a) relative to body weight.arrow_forwardWhich of the following statements concerning ATP is true? a. The free energy value for the hydrolysis of ATP is nearly the same for ADP. b. The free energy value for the hydrolysis of ATP is greater than that for ADP. c. ATP hydrolysis is more likely at pH 5 than at pH 7. d. One mole of glycerate-1,3-bisphosphate can phosphorylate one mole of AMP to yield ATP.arrow_forward
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