BIOLOGY
5th Edition
ISBN: 9781265202859
Author: BROOKER
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Question
Chapter 6, Problem 2COQ
Summary Introduction
To determine: The advantage of using ATP (Adenosine triphosphate) as a common energy source over the different bunch of food molecules.
Introduction: ATP is the energy currency of the cell which provides the required amount of energy to the cell for various purposes. The cell uses ATP as a common energy source instead of using a different bunch of food molecules.
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Students have asked these similar questions
What is the enzymatic activity of sodium-potassium ATPase (pump)?
binds to and hydrolyzes ATP; binds to 3 Na+ in cytoplasm and releases outside cell; binds to 2 K+ outside cell and releases into cytoplasm
binds to and hydrolyzes ATP; binds to 2 Na+ in cytoplasm and releases outside cell; binds to 3 K+ outside cell and releases into cytoplasm
binds to and hydrolyzes GTP; binds to 3 Na+ in cytoplasm and releases into nucleus; binds to 2 K+ inside cell and releases into lysosome
binds to and hydrolyzes 3 ATP; binds to 1 Na+ in cytoplasm and releases outside cell; binds to 1 K+ outside cell and releases into cytoplasm
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.
Incorrect
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?
Glucokinase increases the transition state energy, favoring glucose phosphorylation.
Reaction intermediates do not need to be present in excess.
The process takes advantage of the high phosphoryl group transfer potential of ATP.
ATP hydrolysis is thermodynamically unfavorable compared to group transfer.
Chapter 6 Solutions
BIOLOGY
Ch. 6.1 - Which do you think has more entropy, a NaCl...Ch. 6.1 - Prob. 2CCCh. 6.2 - Prob. 1CCCh. 6.2 - Prob. 2CCCh. 6.2 - Prob. 1CSCh. 6.2 - Prob. 1EQCh. 6.2 - Prob. 2EQCh. 6.2 - Prob. 3EQCh. 6.3 - Prob. 1CSCh. 6.3 - Prob. 2CS
Ch. 6.4 - What are advantages of protein degradation?Ch. 6 - Reactions that release free energy are a....Ch. 6 - Enzymes speed up reactions by a. providing...Ch. 6 - Prob. 3TYCh. 6 - Researchers analyzed a cell extracta mixture of...Ch. 6 - In biological systems, ATP functions by a....Ch. 6 - In a chemical reaction, NADH is converted to NAD+...Ch. 6 - Prob. 7TYCh. 6 - Prob. 8TYCh. 6 - Prob. 9TYCh. 6 - Autophagy provides a way for cells to a. degrade...Ch. 6 - Prob. 1CQCh. 6 - Prob. 2CQCh. 6 - Prob. 3CQCh. 6 - Prob. 1COQCh. 6 - Prob. 2COQ
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