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Questions and Answers
Which process releases energy and involves breaking down of molecules?
Which process releases energy and involves breaking down of molecules?
What is the sum total of all biochemical reactions that take place in an organism?
What is the sum total of all biochemical reactions that take place in an organism?
Which type of process requires energy and involves building up of molecules?
Which type of process requires energy and involves building up of molecules?
What is the process of making or breaking C-C bonds considered as?
What is the process of making or breaking C-C bonds considered as?
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Which type of process involves the flow of electrons in the biological system?
Which type of process involves the flow of electrons in the biological system?
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In the context of energy balance, what is not merely accounted in the mechanical work of motion?
In the context of energy balance, what is not merely accounted in the mechanical work of motion?
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Which of the following serves as the energy currency in cells?
Which of the following serves as the energy currency in cells?
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What type of reaction can convert a thermodynamically unfavorable reaction sequence into a favorable one?
What type of reaction can convert a thermodynamically unfavorable reaction sequence into a favorable one?
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Which of the following reactions involves nucleophilic attack at the α-position of ATP?
Which of the following reactions involves nucleophilic attack at the α-position of ATP?
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What is responsible for all work done by living organisms, directly or indirectly?
What is responsible for all work done by living organisms, directly or indirectly?
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What can relieve electrostatic repulsion among the negative charges on ATP as a result of hydrolysis?
What can relieve electrostatic repulsion among the negative charges on ATP as a result of hydrolysis?
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Which type of reaction involves transfer of acyl, glycosyl, and phosphoryl groups from one nucleophile to another in living cells?
Which type of reaction involves transfer of acyl, glycosyl, and phosphoryl groups from one nucleophile to another in living cells?
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What does ATP generally convert to during the donation of energy?
What does ATP generally convert to during the donation of energy?
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What serves as the electrophilic target for nucleophilic attack in adenylylation?
What serves as the electrophilic target for nucleophilic attack in adenylylation?
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How can a thermodynamically unfavorable reaction sequence be converted into a favorable one?
How can a thermodynamically unfavorable reaction sequence be converted into a favorable one?
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Metabolism is the sum total of all biochemical reactions that take place in an organism.
Metabolism is the sum total of all biochemical reactions that take place in an organism.
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Catabolism is a reductive process that requires energy.
Catabolism is a reductive process that requires energy.
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Living things are not unique thermodynamic systems.
Living things are not unique thermodynamic systems.
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Stored chemical energy can only be used to drive exergonic reactions.
Stored chemical energy can only be used to drive exergonic reactions.
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Adenosine Triphosphate (ATP) hydrolysis is not involved in nucleophilic reactions.
Adenosine Triphosphate (ATP) hydrolysis is not involved in nucleophilic reactions.
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The Law of Conservation of Energy states that energy intake must equal internal heat produced, work, and storage.
The Law of Conservation of Energy states that energy intake must equal internal heat produced, work, and storage.
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The process of making or breaking C-C bonds is considered as a biochemical reaction.
The process of making or breaking C-C bonds is considered as a biochemical reaction.
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ATP serves as the energy currency that links catabolism and anabolism.
ATP serves as the energy currency that links catabolism and anabolism.
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The flow of electrons in oxidation-reduction reactions is responsible for all work done by living organisms.
The flow of electrons in oxidation-reduction reactions is responsible for all work done by living organisms.
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A thermodynamically unfavorable reaction sequence can be converted into a favorable one by coupling it to the hydrolysis of a sufficient number of ATP molecules.
A thermodynamically unfavorable reaction sequence can be converted into a favorable one by coupling it to the hydrolysis of a sufficient number of ATP molecules.
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ATP provides energy by simple hydrolysis.
ATP provides energy by simple hydrolysis.
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Adenylylation involves nucleophilic attack at the γ-position of ATP.
Adenylylation involves nucleophilic attack at the γ-position of ATP.
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Cholesterol biosynthesis precursor involves C-C bond making or breaking.
Cholesterol biosynthesis precursor involves C-C bond making or breaking.
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ATP consumption during strenuous exertion is 0.5 kg/min.
ATP consumption during strenuous exertion is 0.5 kg/min.
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Firefly Bioluminescence Cycle is discussed in the text.
Firefly Bioluminescence Cycle is discussed in the text.
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The charge separation resulting from ATP hydrolysis relieves electrostatic attraction among the negative charges on ATP.
The charge separation resulting from ATP hydrolysis relieves electrostatic attraction among the negative charges on ATP.
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Study Notes
Energy and Metabolism
- Catabolism releases energy and involves breaking down of molecules.
- Metabolism is the sum total of all biochemical reactions that take place in an organism.
- Anabolism requires energy and involves building up of molecules.
ATP and Energy
- ATP serves as the energy currency that links catabolism and anabolism.
- ATP provides energy by simple hydrolysis.
- ATP hydrolysis is involved in nucleophilic reactions.
Biochemical Reactions
- The process of making or breaking C-C bonds is considered as a biochemical reaction.
- Oxidation-reduction reactions involve the flow of electrons in the biological system.
- Nucleophilic attack at the α-position of ATP is involved in certain reactions.
Energy Balance
- Energy intake must equal internal heat produced, work, and storage (Law of Conservation of Energy).
- Stored chemical energy can only be used to drive exergonic reactions.
- Living things are not unique thermodynamic systems.
Reaction Sequences
- A thermodynamically unfavorable reaction sequence can be converted into a favorable one by coupling it to the hydrolysis of a sufficient number of ATP molecules.
- ATP consumption during strenuous exertion is not 0.5 kg/min (this is an incorrect statement).
ATP Hydrolysis
- ATP hydrolysis relieves electrostatic repulsion among the negative charges on ATP.
- ATP generally converts to ADP during the donation of energy.
Adenylylation
- Adenylylation involves nucleophilic attack at the α-position of ATP.
- The γ-position of ATP is not involved in adenylylation.
Biosynthesis
- Cholesterol biosynthesis precursor involves C-C bond making or breaking.
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Description
Test your knowledge on the importance of energy changes and electron transfer in metabolism with this quiz. Topics include energy balance, biochemical reactions, ATP, ATP hydrolysis, bioluminescence, flow of electrons, biological redox, and coenzymes.
