BIOLOGY: CONCEPTS&INVEST. (LL)
5th Edition
ISBN: 9781264706983
Author: Hoefnagels
Publisher: MCG
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Chapter 4, Problem 4WIO
Provide an example of an appliance that uses coupled reactions.
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Describe the ways an exergonic process can drive an endergonic process.
Define the thermodynamic term “work.” Provide two physiological examples of work.
In hepatocytes, the enzyme glucokinase catalyzes the ATP-coupled phosphorylation of glucose. Glucokinase binds both ATP
and glucose, forming a glucose-ATP-enzyme complex. The enzyme then transfers the phosphoryl group directly from ATP
to glucose.
Select the advantages of phosphoryl group transfer compared to hydrolysis and subsequent phosphorylation?
ATP hydrolysis is thermodynamically unfavorable compared to group transfer.
Glucokinase increases the transition state energy, favoring glucose phosphorylation.
The process takes advantage of the high phosphoryl group transfer potential of ATP.
Reaction intermediates do not need to be present in excess.
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Chapter 4 Solutions
BIOLOGY: CONCEPTS&INVEST. (LL)
Ch. 4.1 - What are some examples of the work of a cell?Ch. 4.1 - Prob. 2MCCh. 4.1 - Prob. 3MCCh. 4.1 - Prob. 4MCCh. 4.2 - What is metabolism on a cellular level?Ch. 4.2 - Prob. 2MCCh. 4.2 - Prob. 3MCCh. 4.3 - What are the main parts of an ATP molecule?Ch. 4.3 - Prob. 2MCCh. 4.3 - Describe the relationships among endergonic...
Ch. 4.4 - Prob. 1MCCh. 4.4 - Prob. 2MCCh. 4.4 - Prob. 3MCCh. 4.4 - Prob. 4MCCh. 4.4 - List three conditions that influence enzyme...Ch. 4.5 - What is diffusion?Ch. 4.5 - What types of substances diffuse freely across a...Ch. 4.5 - Prob. 3MCCh. 4.5 - Prob. 4MCCh. 4.5 - Prob. 5MCCh. 4.5 - Prob. 6MCCh. 4.6 - How does a knifefish adjust its electric field?Ch. 4.6 - Prob. 2MCCh. 4 - Prob. 1MCQCh. 4 - Building proteins _____ energy; ATP hydrolysis...Ch. 4 - How does an enzyme affect the energy of a...Ch. 4 - Prob. 4MCQCh. 4 - Prob. 5MCQCh. 4 - Some people claim that lifes high degree of...Ch. 4 - List some examples of endergonic and exergonic...Ch. 4 - Why do electron transport chains release energy?Ch. 4 - Provide an example of an appliance that uses...Ch. 4 - Name at least four ways that a cell uses ATP.Ch. 4 - Use what you know about enzymes to propose an...Ch. 4 - Prob. 7WIOCh. 4 - Prob. 8WIOCh. 4 - Prob. 9WIOCh. 4 - Liver cells are packed with glucose. If the...Ch. 4 - Prob. 1PITCh. 4 - Prob. 2PITCh. 4 - Prob. 3PIT
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- draw a schematic of energy balancearrow_forward§ What is the total ATP production for each energy system? (per one Phosphocreatine molecule for ATP-PC, and per one glucose molecule for glycolysis)arrow_forwardList all sublevel of the 5th principal energy level and say what their shape is ?arrow_forward
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- The relationship between ATP and ADP can be compared to the state of a battery. Which of the following statements best compares ATP,ADP and a battery?arrow_forwardThe capacity to do work best defines: a metabolic pathway. entropy. kinetic or potential energy. a chemical equilibrium. thermodynamics.arrow_forwardThere are two regulators in the Principles of Bioenergetics. They are: Group of answer choices ATP utilization rate and proton conductance ADP use and CO2 production Carbon and NADarrow_forward
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