Phosphoenolpyruvate (PEP) is a high energy compound that releases 14.8 kCal/mole of energy, when it hydrolyses to pyruvate and Pi. This equation can be coupled with the synthesis of ATP from ADP to Pi. a. Write an equation for the energy –releasing reaction of PEP. b. Write an equation for the energy-releasing reaction that forms ATP. c. Write the overall equation for the combined reaction including the net energy change. Concept introduction: The phosphate ester bond in the phosphoenolpyruvate undergoes hydrolysis to form the ‘enol’ form of pyruvate. As it is unstable, it tautomerizes to a more stable ‘keto’ form. The reactant namely phosphoenolpyruvate which is ‘enol’ is unstable but the product formed converts to a stabilized form. This is the greatest contributing factor to the high standard free energy of hydrolysis of PEP.

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Answer 1

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Chapter 22.1, Problem 22.9QAP

Interpretation Introduction

Interpretation:

Phosphoenolpyruvate (PEP) is a high energy compound that releases 14.8 kCal/mole of energy, when it hydrolyses to pyruvate and Pi. This equation can be coupled with the synthesis of ATP from ADP to Pi.

a. Write an equation for the energy –releasing reaction of PEP.

b. Write an equation for the energy-releasing reaction that forms ATP.

c. Write the overall equation for the combined reaction including the net energy change.

Concept introduction:

The phosphate ester bond in the phosphoenolpyruvate undergoes hydrolysis to form the ‘enol’ form of pyruvate. As it is unstable, it tautomerizes to a more stable ‘keto’ form. The reactant namely phosphoenolpyruvate which is ‘enol’ is unstable but the product formed converts to a stabilized form. This is the greatest contributing factor to the high standard free energy of hydrolysis of PEP.

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Answer 2

Question

Chapter 22.1, Problem 22.9QAP

Interpretation Introduction

Interpretation:

Phosphoenolpyruvate (PEP) is a high energy compound that releases 14.8 kCal/mole of energy, when it hydrolyses to pyruvate and Pi. This equation can be coupled with the synthesis of ATP from ADP to Pi.

a. Write an equation for the energy –releasing reaction of PEP.

b. Write an equation for the energy-releasing reaction that forms ATP.

c. Write the overall equation for the combined reaction including the net energy change.

Concept introduction:

The phosphate ester bond in the phosphoenolpyruvate undergoes hydrolysis to form the ‘enol’ form of pyruvate. As it is unstable, it tautomerizes to a more stable ‘keto’ form. The reactant namely phosphoenolpyruvate which is ‘enol’ is unstable but the product formed converts to a stabilized form. This is the greatest contributing factor to the high standard free energy of hydrolysis of PEP.

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Answer 3

Question

Chapter 22.1, Problem 22.9QAP

Interpretation Introduction

Interpretation:

Phosphoenolpyruvate (PEP) is a high energy compound that releases 14.8 kCal/mole of energy, when it hydrolyses to pyruvate and Pi. This equation can be coupled with the synthesis of ATP from ADP to Pi.

a. Write an equation for the energy –releasing reaction of PEP.

b. Write an equation for the energy-releasing reaction that forms ATP.

c. Write the overall equation for the combined reaction including the net energy change.

Concept introduction:

The phosphate ester bond in the phosphoenolpyruvate undergoes hydrolysis to form the ‘enol’ form of pyruvate. As it is unstable, it tautomerizes to a more stable ‘keto’ form. The reactant namely phosphoenolpyruvate which is ‘enol’ is unstable but the product formed converts to a stabilized form. This is the greatest contributing factor to the high standard free energy of hydrolysis of PEP.

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Answer 4

Question

Chapter 22.1, Problem 22.9QAP

Interpretation Introduction

Interpretation:

Phosphoenolpyruvate (PEP) is a high energy compound that releases 14.8 kCal/mole of energy, when it hydrolyses to pyruvate and Pi. This equation can be coupled with the synthesis of ATP from ADP to Pi.

a. Write an equation for the energy –releasing reaction of PEP.

b. Write an equation for the energy-releasing reaction that forms ATP.

c. Write the overall equation for the combined reaction including the net energy change.

Concept introduction:

The phosphate ester bond in the phosphoenolpyruvate undergoes hydrolysis to form the ‘enol’ form of pyruvate. As it is unstable, it tautomerizes to a more stable ‘keto’ form. The reactant namely phosphoenolpyruvate which is ‘enol’ is unstable but the product formed converts to a stabilized form. This is the greatest contributing factor to the high standard free energy of hydrolysis of PEP.

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Answer 5

Chapter 22.1, Problem 22.9QAP

Interpretation Introduction

Interpretation:

Phosphoenolpyruvate (PEP) is a high energy compound that releases 14.8 kCal/mole of energy, when it hydrolyses to pyruvate and Pi. This equation can be coupled with the synthesis of ATP from ADP to Pi.

a. Write an equation for the energy –releasing reaction of PEP.

b. Write an equation for the energy-releasing reaction that forms ATP.

c. Write the overall equation for the combined reaction including the net energy change.

Concept introduction:

The phosphate ester bond in the phosphoenolpyruvate undergoes hydrolysis to form the ‘enol’ form of pyruvate. As it is unstable, it tautomerizes to a more stable ‘keto’ form. The reactant namely phosphoenolpyruvate which is ‘enol’ is unstable but the product formed converts to a stabilized form. This is the greatest contributing factor to the high standard free energy of hydrolysis of PEP.

Answer 6

Chapter 22.1, Problem 22.9QAP

Interpretation Introduction

Interpretation:

Phosphoenolpyruvate (PEP) is a high energy compound that releases 14.8 kCal/mole of energy, when it hydrolyses to pyruvate and Pi. This equation can be coupled with the synthesis of ATP from ADP to Pi.

a. Write an equation for the energy –releasing reaction of PEP.

b. Write an equation for the energy-releasing reaction that forms ATP.

c. Write the overall equation for the combined reaction including the net energy change.

Concept introduction:

The phosphate ester bond in the phosphoenolpyruvate undergoes hydrolysis to form the ‘enol’ form of pyruvate. As it is unstable, it tautomerizes to a more stable ‘keto’ form. The reactant namely phosphoenolpyruvate which is ‘enol’ is unstable but the product formed converts to a stabilized form. This is the greatest contributing factor to the high standard free energy of hydrolysis of PEP.

Answer 7

Chapter 22.1, Problem 22.9QAP

Interpretation Introduction

Interpretation:

Phosphoenolpyruvate (PEP) is a high energy compound that releases 14.8 kCal/mole of energy, when it hydrolyses to pyruvate and Pi. This equation can be coupled with the synthesis of ATP from ADP to Pi.

a. Write an equation for the energy –releasing reaction of PEP.

b. Write an equation for the energy-releasing reaction that forms ATP.

c. Write the overall equation for the combined reaction including the net energy change.

Concept introduction:

The phosphate ester bond in the phosphoenolpyruvate undergoes hydrolysis to form the ‘enol’ form of pyruvate. As it is unstable, it tautomerizes to a more stable ‘keto’ form. The reactant namely phosphoenolpyruvate which is ‘enol’ is unstable but the product formed converts to a stabilized form. This is the greatest contributing factor to the high standard free energy of hydrolysis of PEP.

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Ch. 22.1 - Prob. 22.1QAP Ch. 22.1 - Prob. 22.2QAP Ch. 22.1 - Prob. 22.3QAP Ch. 22.1 - Prob. 22.4QAP Ch. 22.1 - Prob. 22.5QAP Ch. 22.1 - Prob. 22.6QAP Ch. 22.1 - Prob. 22.7QAP Ch. 22.1 - Prob. 22.8QAP Ch. 22.1 - Prob. 22.9QAP Ch. 22.1 - Prob. 22.10QAP

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