A) electrons are lost. B) electrons are gained. C) electrons may either be lost or gained. D) hydrogen is formed. A) electrons are lost. B) electrons are gained. C) electrons may either be lost or gained. D) hydrogen is formed.

Exam 15: The Importance of Energy Changes and Electron Transfer in Metabolism

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Consider this rxn which has a Δ G ° = +0.4 kJ\mol. Succinate + FAD ↔ fumarate + FADH₂ 1 mM of each compound are mixed & the reaction is allowed to come to equilibrium. Which statement is correct about the resulting concentration of FAD at equilibrium?

(Multiple Choice)

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Question 41

"Metabolism" refers to

(Multiple Choice)

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Question 42

For a general equation , the relation between the free-energy change ( ) for the reaction under any condition and the free energy change under standard conditions ( ) can be written as _____.

(Multiple Choice)

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Question 43

In the coenzyme FAD the site to which electrons are transferred is

(Multiple Choice)

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Question 44

Consider these reactions: What is the Δ G ° ' of the last reaction?

(Multiple Choice)

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Question 45

During reduction

(Multiple Choice)

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Question 46

Consider this rxn which has a Δ G ° = +0.4 kJ\mol. A + B ↔ C + D 1 M A, 1 M B, 0.1 M C and 0.1 M D are added to a container at room temperature. Which of the following statements is true?

(Multiple Choice)

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Question 47

Which of the following statements apply to anabolism?

(Multiple Choice)

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Question 48

Which of the following statements concerning the free energy change ( Δ G) is false ?

(Multiple Choice)

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Question 49

The number of degrees of freedom a molecule has is related to the numbers of resonant structures it has.

(True/False)

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Question 50

Metabolism takes place in stages

(Multiple Choice)

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Question 51

I am performing a reaction, A → B, with Δ G ° ' = − 0.3 kJ\mol. I start the reaction with 10 mM A and no B. After allowing the reaction to proceed for 24 hrs at room temperature and atmospheric pressure, I analyze a sample of the reaction mix to find I now have 1 mM A and 9 mM B. Which of the following conclusions should I make?

(Multiple Choice)

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Question 52

By definition, a spontaneous reaction is one in which

(Multiple Choice)

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Question 53

In biological redox reactions, hydrogen ions are usually transferred along with electrons.

(True/False)

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Question 54

The linking of an exergonic reaction to drive an endergonic reaction is called:

(Multiple Choice)

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Question 55

The conversion of NAD⁺ to NADH is an example of reduction because

(Multiple Choice)

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Question 56

In general, the anabolic pathways tend to involve oxidation reactions.

(True/False)

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Question 57

The standard state of a solution is taken as

(Multiple Choice)

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Question 58

Identify the value of if a reaction is at equilibrium and the equilibrium constant ( ) for the reaction is 20 . (The values of R and T are 8.31 J mol^-1 K^-1 and 273.0 K, respectively.)

(Multiple Choice)

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Question 59

Explain what happens to carbon atoms in biological oxidation-reduction reactions.

(Essay)

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Question 60

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Exam 15: The Importance of Energy Changes and Electron Transfer in Metabolism

Consider this rxn which has a Δ G ° = +0.4 kJ\mol. Succinate + FAD ↔ fumarate + FADH2 1 mM of each compound are mixed & the reaction is allowed to come to equilibrium. Which statement is correct about the resulting concentration of FAD at equilibrium?

"Metabolism" refers to

​ For a general equation , the relation between the free-energy change ( ) for the reaction under any condition and the free energy change under standard conditions ( ) can be written as _____.

In the coenzyme FAD the site to which electrons are transferred is

Consider these reactions: What is the Δ G ° ' of the last reaction?

During reduction

Consider this rxn which has a Δ G ° = +0.4 kJ\mol. A + B ↔ C + D 1 M A, 1 M B, 0.1 M C and 0.1 M D are added to a container at room temperature. Which of the following statements is true?

Which of the following statements apply to anabolism?

Which of the following statements concerning the free energy change ( Δ G) is false ?

The number of degrees of freedom a molecule has is related to the numbers of resonant structures it has.

Metabolism takes place in stages

By definition, a spontaneous reaction is one in which

In biological redox reactions, hydrogen ions are usually transferred along with electrons.

The linking of an exergonic reaction to drive an endergonic reaction is called:

The conversion of NAD+ to NADH is an example of reduction because

In general, the anabolic pathways tend to involve oxidation reactions.

The standard state of a solution is taken as

​ Identify the value of if a reaction is at equilibrium and the equilibrium constant ( ) for the reaction is 20 . (The values of R and T are 8.31 J mol-1 K-1 and 273.0 K, respectively.)

Explain what happens to carbon atoms in biological oxidation-reduction reactions.

Biochemistry and the Organization of Cells

Water the Solvent for Biochemical Reactions

Amino Acids and Peptides

The Three Dimensional Structure of Proteins

Protein Purification and Characterization Techniques

The Behavior of Proteins Enzymes

The Behavior of Proteins Enzymes Mechanisms and Control

Lipids and Proteins Are Associated in Biological Membranes

Nucleic Acids How Structure Conveys Information

Biosynthesis of Nucleic Acids Replication

Transcription of the Genetic Code the Biosynthesis of Rna

Protein Synthesis Translation of the Genetic Message

Nucleic Acid Biotechnology Techniques

Viruses Cancer and Immunology

Carbohydrates

Glycolysis

Storage Mechanisms and Control in Carbohydrate Metabolism

The Citric Acid Cycle

Electron Transport and Oxidative Phosphorylation

Lipid Metabolism

Photosynthesis

The Metabolism of Nitrogen

Integration of Metabolism Cellular Signaling

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Consider this rxn which has a Δ G ° = +0.4 kJ\mol. Succinate + FAD ↔ fumarate + FADH₂ 1 mM of each compound are mixed & the reaction is allowed to come to equilibrium. Which statement is correct about the resulting concentration of FAD at equilibrium?

For a general equation , the relation between the free-energy change ( ) for the reaction under any condition and the free energy change under standard conditions ( ) can be written as _____.

The conversion of NAD⁺ to NADH is an example of reduction because

Identify the value of if a reaction is at equilibrium and the equilibrium constant ( ) for the reaction is 20 . (The values of R and T are 8.31 J mol^-1 K^-1 and 273.0 K, respectively.)