Campbell Biology Plus Masteringbiology
10th Edition
ISBN: 9780321775849
Author: Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson
Publisher: PEARSON
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Chapter 8.3, Problem 2CC
Summary Introduction
To determine: In which of the following there is more free energy present
Introduction: The reaction between
The free energy is more in the first reaction as the
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Write the abbreviated chemical equation for the phosphate hydrolysis reaction in the forward direction:
Glucose 3-phosphate
Write the abbreviated chemical equation for the phosphate hydrolysis reaction in the forward direction:
ATP (ADP + Pi)
The hydrolysis of the phosphoester bond of ATP releases a large amount of free energy.
True or false?
Chapter 8 Solutions
Campbell Biology Plus Masteringbiology
Ch. 8.1 - MAKE CONNECTIONS How does the second law of...Ch. 8.1 - Describe the forms of energy found in an apple as...Ch. 8.1 - WHAT IF? If you place a teaspoon of sugar in the...Ch. 8.2 - Cellular respiration uses glucose and oxygen,...Ch. 8.2 - VISUAL SKILLS How would the processes of...Ch. 8.2 - WHAT IF? Some nighttime partygoers wear glow-in-...Ch. 8.3 - How does ATP typically transfer energy from an...Ch. 8.3 - Prob. 2CCCh. 8.3 - MAKE CONNECTIONS Does Figure 8.11a show passive...Ch. 8.4 - Many spontaneous reactions occur very slowly. Why...
Ch. 8.4 - Prob. 2CCCh. 8.4 - WHAT IF? Malonate is an inhibitor of the enzyme...Ch. 8.4 - Prob. 4CCCh. 8.5 - How do an activator and an inhibitor have...Ch. 8.5 - Prob. 2CCCh. 8 - Explain how the highly ordered structure of a cell...Ch. 8 - Explain the meaning of each component in the...Ch. 8 - Describe the ATP cycle: How is ATP used and...Ch. 8 - How do both activation energy barriers and enzymes...Ch. 8 - Prob. 8.5CRCh. 8 - Choose the pair of terms that correctly completes...Ch. 8 - Prob. 2TYUCh. 8 - Which of the following metabolic processes can...Ch. 8 - Prob. 4TYUCh. 8 - Some bacteria art metabolically active in hot...Ch. 8 - If an enzyme is added to a solution where its...Ch. 8 - Prob. 7TYUCh. 8 - EVOLUTION CONNECTION Some people argue that...Ch. 8 - Prob. 9TYUCh. 8 - WRITE ABOUT A THEME: ENERGY AND MATTER Life...Ch. 8 - Prob. 11TYU
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- The hydrolysis of pyrophosphate to orthophosphate drives biosynthetic reactions such as DNA synthesis. In Escherichia coli, a pyrophosphatase catalyzes this hydrolytic reaction. The pyrophosphatase has a mass of 120 kDa and consists of six identical subunits. A unit of activity for this enzyme, U, is the amount of enzyme that hydrolyzes 10 umol of pyrophosphate in 15 minutes. The purified enzyme has a Vnax of 2800 U per milligram of enzyme. When (S] >> KM, how many micromoles of substrate can 1 mg of enzyme hydrolyze per second? Vnas umol-s. mg-! max If each enzyme subunit has one active site, how many micromoles of active sites, or (E]r, are there in 1 mg of enzyme? (Er= umol · mg-!arrow_forwardAs a result of an experiment following measurements were obtained from a cell: ATP concentration of 0.5 mM, ADP concentration of 0.1 mM, inorganic phosphate (Pi) concentration of 2 mM. Under these conditions calculate the actual free energy (AG) of the reaction of hydrolysis of ATP to ADP and Pi. (The standard energy (AG") of ATP = -31 kl/mol; RT = 2.58 kJ/mol) Select one: a. -28 kJ/mol b. -33 kJ/mol C. -42 kJ/mol d. -19 kJ/molarrow_forwardEach proton that moves across the membrane releases about 14 kJ/mol of energy. Given that ATP requires 30.5 kJ/mol of energy to form, how many protons cross the membrane per ATP synthesized? (Hint: can you have half a proton?)arrow_forward
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- 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.arrow_forwardcreate a table to summarize the ATP count for the listed carbohydrates below that will undergo cellular respiration (Glycolysis, Krebs and ETC), in the liver, kidney & heart as well in the skeletal muscle and brain. Support your answer with calculations:Calculations: Carbohydrates Glucose Fructose Galactose Maltose Lactose Sucrose Calculations: C ATP (Liver, Kidney & Heart) ATP (Muscle & Brain)arrow_forwardATP, which is loosely bound to the glycolytic enzyme hexokinase, can be correctly categorized as all of the following except: an inorganic cofactor an organic cofactor a cosubstrate a coenzyme a cofactorarrow_forward
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