To draw: The substrate cycle formed by malic enzyme, pyruvate carboxylase and the third enzyme. Concept introduction: The citric acid cycle is central to metabolism and hub for providing intermediates for biosynthesis of cellular molecules. Malate is one of the intermediate metabolites of the citric acid cycle that exits the cycle and enters the cytosolic molecular pool.

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Answer 1

Question

Chapter 17, Problem 34CQ

(a)

Summary Introduction

To draw: The substrate cycle formed by malic enzyme, pyruvate carboxylase and the third enzyme.

Concept introduction: The citric acid cycle is central to metabolism and hub for providing intermediates for biosynthesis of cellular molecules. Malate is one of the intermediate metabolites of the citric acid cycle that exits the cycle and enters the cytosolic molecular pool.

(b)

Summary Introduction

To write: The net equation for converting malate to pyruvate and back to malate.

Concept introduction: The citric acid cycle is central to metabolism and hub for providing intermediates for biosynthesis of cellular molecules. Malate is one of the intermediate metabolites of the citric acid cycle that exits the cycle and enters the cytosolic molecular pool. .

Summary Introduction

To explain: The net equation for converting malate to pyruvate and back to malate and what does this accomplish for the cell.

Concept introduction: The citric acid cycle is central to metabolism and hub for providing intermediates for biosynthesis of cellular molecules. Malate is one of the intermediate metabolites of the citric acid cycle that exits the cycle and enters the cytosolic molecular pool.

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1. Estimate the concentration of an enzyme within a living cell. Assume that: (a): fresh tissue is 80% water and all of it is intracellular (b): the total soluble protein represents 15% of the weight (c): all the soluble proteins are enzymes (d): the average molecular weight of the proteins is 150,000 (E): about 100 different enzymes are present please help I am lost

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Answer 2

Question

Chapter 17, Problem 34CQ

(a)

Summary Introduction

To draw: The substrate cycle formed by malic enzyme, pyruvate carboxylase and the third enzyme.

Concept introduction: The citric acid cycle is central to metabolism and hub for providing intermediates for biosynthesis of cellular molecules. Malate is one of the intermediate metabolites of the citric acid cycle that exits the cycle and enters the cytosolic molecular pool.

(b)

Summary Introduction

To write: The net equation for converting malate to pyruvate and back to malate.

Concept introduction: The citric acid cycle is central to metabolism and hub for providing intermediates for biosynthesis of cellular molecules. Malate is one of the intermediate metabolites of the citric acid cycle that exits the cycle and enters the cytosolic molecular pool. .

Summary Introduction

To explain: The net equation for converting malate to pyruvate and back to malate and what does this accomplish for the cell.

Concept introduction: The citric acid cycle is central to metabolism and hub for providing intermediates for biosynthesis of cellular molecules. Malate is one of the intermediate metabolites of the citric acid cycle that exits the cycle and enters the cytosolic molecular pool.

Expert Solution & Answer

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See solution

Answer 3

Question

Chapter 17, Problem 34CQ

(a)

Summary Introduction

To draw: The substrate cycle formed by malic enzyme, pyruvate carboxylase and the third enzyme.

Concept introduction: The citric acid cycle is central to metabolism and hub for providing intermediates for biosynthesis of cellular molecules. Malate is one of the intermediate metabolites of the citric acid cycle that exits the cycle and enters the cytosolic molecular pool.

(b)

Summary Introduction

To write: The net equation for converting malate to pyruvate and back to malate.

Concept introduction: The citric acid cycle is central to metabolism and hub for providing intermediates for biosynthesis of cellular molecules. Malate is one of the intermediate metabolites of the citric acid cycle that exits the cycle and enters the cytosolic molecular pool. .

Summary Introduction

To explain: The net equation for converting malate to pyruvate and back to malate and what does this accomplish for the cell.

Concept introduction: The citric acid cycle is central to metabolism and hub for providing intermediates for biosynthesis of cellular molecules. Malate is one of the intermediate metabolites of the citric acid cycle that exits the cycle and enters the cytosolic molecular pool.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 4

Question

Chapter 17, Problem 34CQ

(a)

Summary Introduction

To draw: The substrate cycle formed by malic enzyme, pyruvate carboxylase and the third enzyme.

Concept introduction: The citric acid cycle is central to metabolism and hub for providing intermediates for biosynthesis of cellular molecules. Malate is one of the intermediate metabolites of the citric acid cycle that exits the cycle and enters the cytosolic molecular pool.

(b)

Summary Introduction

To write: The net equation for converting malate to pyruvate and back to malate.

Concept introduction: The citric acid cycle is central to metabolism and hub for providing intermediates for biosynthesis of cellular molecules. Malate is one of the intermediate metabolites of the citric acid cycle that exits the cycle and enters the cytosolic molecular pool. .

Summary Introduction

To explain: The net equation for converting malate to pyruvate and back to malate and what does this accomplish for the cell.

Concept introduction: The citric acid cycle is central to metabolism and hub for providing intermediates for biosynthesis of cellular molecules. Malate is one of the intermediate metabolites of the citric acid cycle that exits the cycle and enters the cytosolic molecular pool.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 5

Chapter 17, Problem 34CQ

(a)

Summary Introduction

To draw: The substrate cycle formed by malic enzyme, pyruvate carboxylase and the third enzyme.

Concept introduction: The citric acid cycle is central to metabolism and hub for providing intermediates for biosynthesis of cellular molecules. Malate is one of the intermediate metabolites of the citric acid cycle that exits the cycle and enters the cytosolic molecular pool.

(b)

Summary Introduction

To write: The net equation for converting malate to pyruvate and back to malate.

Concept introduction: The citric acid cycle is central to metabolism and hub for providing intermediates for biosynthesis of cellular molecules. Malate is one of the intermediate metabolites of the citric acid cycle that exits the cycle and enters the cytosolic molecular pool. .

Summary Introduction

To explain: The net equation for converting malate to pyruvate and back to malate and what does this accomplish for the cell.

Concept introduction: The citric acid cycle is central to metabolism and hub for providing intermediates for biosynthesis of cellular molecules. Malate is one of the intermediate metabolites of the citric acid cycle that exits the cycle and enters the cytosolic molecular pool.

Answer 6

Chapter 17, Problem 34CQ

(a)

Summary Introduction

To draw: The substrate cycle formed by malic enzyme, pyruvate carboxylase and the third enzyme.

Concept introduction: The citric acid cycle is central to metabolism and hub for providing intermediates for biosynthesis of cellular molecules. Malate is one of the intermediate metabolites of the citric acid cycle that exits the cycle and enters the cytosolic molecular pool.

Answer 7

Chapter 17, Problem 34CQ

(a)

Summary Introduction

To draw: The substrate cycle formed by malic enzyme, pyruvate carboxylase and the third enzyme.

Concept introduction: The citric acid cycle is central to metabolism and hub for providing intermediates for biosynthesis of cellular molecules. Malate is one of the intermediate metabolites of the citric acid cycle that exits the cycle and enters the cytosolic molecular pool.

Answer 8

(b)

Summary Introduction

To write: The net equation for converting malate to pyruvate and back to malate.

Concept introduction: The citric acid cycle is central to metabolism and hub for providing intermediates for biosynthesis of cellular molecules. Malate is one of the intermediate metabolites of the citric acid cycle that exits the cycle and enters the cytosolic molecular pool. .

Answer 9

(b)

Summary Introduction

To write: The net equation for converting malate to pyruvate and back to malate.

Concept introduction: The citric acid cycle is central to metabolism and hub for providing intermediates for biosynthesis of cellular molecules. Malate is one of the intermediate metabolites of the citric acid cycle that exits the cycle and enters the cytosolic molecular pool. .

Answer 10

Summary Introduction

To explain: The net equation for converting malate to pyruvate and back to malate and what does this accomplish for the cell.

Concept introduction: The citric acid cycle is central to metabolism and hub for providing intermediates for biosynthesis of cellular molecules. Malate is one of the intermediate metabolites of the citric acid cycle that exits the cycle and enters the cytosolic molecular pool.

Answer 11

Summary Introduction

To explain: The net equation for converting malate to pyruvate and back to malate and what does this accomplish for the cell.

Concept introduction: The citric acid cycle is central to metabolism and hub for providing intermediates for biosynthesis of cellular molecules. Malate is one of the intermediate metabolites of the citric acid cycle that exits the cycle and enters the cytosolic molecular pool.

Answer 12

Expert Solution & Answer

Answer 13

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Answer 14

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Answer 15

Ch. 17 - Prob. 1E Ch. 17 - 2. If acetyl-CoA is labeled with l4C at its methyl...Ch. 17 - 3. List four possible metabolic fates for pyruvate...Ch. 17 - 4. Explain why metabolic acidosis (Box 2-2) may...Ch. 17 - 5. Which one of the live steps of the pyruvate...Ch. 17 - Prob. 6E Ch. 17 - 7. Photosynthetic organisms use elaborate...Ch. 17 - 6. Does the pyruvate-formate lyase reaction...Ch. 17 - Prob. 9E Ch. 17 - Prob. 10E

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