To examine: Whether the statement, “The three respiratory enzyme complexes in the mitochondrial inner membrane tend to associate with each other in ways that facilitate the correct transfer of electrons between appropriate complexes.”, is true or false. Introduction: The respiratory chain in the inner mitochondrial membrane contains three respiratory enzyme complexes, across which electrons proceed on their way from NADH to O 2 . In these complexes, electrons are transferred along with a series of protein-bound electron carriers. As the electrons travel toward lower-energy levels, it releases energy, and that energy is used to pump protons by various mechanisms in the three respiratory enzyme complexes.

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Answer 1

Question

Chapter 14, Problem 1P

44322-14-1P

Summary Introduction

To examine: Whether the statement, “The three respiratory enzyme complexes in the mitochondrial inner membrane tend to associate with each other in ways that facilitate the correct transfer of electrons between appropriate complexes.”, is true or false.

Introduction: The respiratory chain in the inner mitochondrial membrane contains three respiratory enzyme complexes, across which electrons proceed on their way from NADH to O₂. In these complexes, electrons are transferred along with a series of protein-bound electron carriers. As the electrons travel toward lower-energy levels, it releases energy, and that energy is used to pump protons by various mechanisms in the three respiratory enzyme complexes.

Expert Solution & Answer

Answer to Problem 1P

Correct answer: The statement is true.

Explanation of Solution

In mitochondria, the electron transfer process starts when two electrons and one proton are separated from NADH to generate NAD⁺ molecules. These electrons are passed to the first of about 20 different electron carries in the respiratory chain. Each respiratory enzyme complex is composed of protein subunits that are placed in the inner mitochondrial membrane. Every complex in the chain has a higher affinity for electrons than its predecessors. Electrons also pass sequentially from one complex to another complex until they finally move to the molecular oxygen.

As the high-energy electron travels from lower redox potential electron carrier to the high redox potential, energy is liberated in the form of ATP. Hence, electron flows across a series of electron carriers to release energy in a series. Stepwise release of energy is important because energy would be lost as heat in case of sudden energy release. Thus, for the efficient utilization of the released energy from the electron, it is important that the respiratory complexes are organized in a structurally ordered manner in the mitochondrial membrane.

Hence, the statement is true.

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Students have asked these similar questions

Older adults have unique challenges in terms of their nutrient needs and physiological changes. Some changes may make it difficult to consume a healthful diet, so it is important to identify strategies to help overcome these obstacles. From the list below, choose all the correct statements about changes in older adults. Select all that apply. Poor vision can make it difficult for older adults to get to a supermarket, and to prepare meals. With age, taste and visual perception decline. As people age, salivary production increases. In older adults with dysphagia, foods like creamy soups, applesauce, and yogurt are usually well tolerated. Lean body mass increases in older adults.

When physical activity increases, energy requirements increase also. Depending on the type, intensity, and duration of physical activity, the body’s requirements for certain macronutrients may change as well. From the list below, choose all the correct statements about the effects of increased physical activity or athletic training. Select all that apply. An athlete who weighs 70 kg (154 lb) should consume 420 to 700 g of carbohydrate per day. How much additional energy an athlete needs depends on the specific activity the athlete engages in and the frequency of the activity. Those participating in vigorous exercise should restrict their fat intake to less than 15%% of total energy intake. Athletes who are following energy-restricted diets are at risk for consuming insufficient protein. The recommendation to limit saturated fat intake to less than 10%% of total energy intake does not apply to athletes or those who regularly engage in vigorous physical activity.

When taking vitamins and vitamin-mineral supplements, how can one be sure they are getting what they are taking?

Answer 2

Question

Chapter 14, Problem 1P

44322-14-1P

Summary Introduction

To examine: Whether the statement, “The three respiratory enzyme complexes in the mitochondrial inner membrane tend to associate with each other in ways that facilitate the correct transfer of electrons between appropriate complexes.”, is true or false.

Introduction: The respiratory chain in the inner mitochondrial membrane contains three respiratory enzyme complexes, across which electrons proceed on their way from NADH to O₂. In these complexes, electrons are transferred along with a series of protein-bound electron carriers. As the electrons travel toward lower-energy levels, it releases energy, and that energy is used to pump protons by various mechanisms in the three respiratory enzyme complexes.

Expert Solution & Answer

Answer to Problem 1P

Correct answer: The statement is true.

Explanation of Solution

In mitochondria, the electron transfer process starts when two electrons and one proton are separated from NADH to generate NAD⁺ molecules. These electrons are passed to the first of about 20 different electron carries in the respiratory chain. Each respiratory enzyme complex is composed of protein subunits that are placed in the inner mitochondrial membrane. Every complex in the chain has a higher affinity for electrons than its predecessors. Electrons also pass sequentially from one complex to another complex until they finally move to the molecular oxygen.

As the high-energy electron travels from lower redox potential electron carrier to the high redox potential, energy is liberated in the form of ATP. Hence, electron flows across a series of electron carriers to release energy in a series. Stepwise release of energy is important because energy would be lost as heat in case of sudden energy release. Thus, for the efficient utilization of the released energy from the electron, it is important that the respiratory complexes are organized in a structurally ordered manner in the mitochondrial membrane.

Hence, the statement is true.

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Answer 3

Question

Chapter 14, Problem 1P

44322-14-1P

Summary Introduction

To examine: Whether the statement, “The three respiratory enzyme complexes in the mitochondrial inner membrane tend to associate with each other in ways that facilitate the correct transfer of electrons between appropriate complexes.”, is true or false.

Introduction: The respiratory chain in the inner mitochondrial membrane contains three respiratory enzyme complexes, across which electrons proceed on their way from NADH to O₂. In these complexes, electrons are transferred along with a series of protein-bound electron carriers. As the electrons travel toward lower-energy levels, it releases energy, and that energy is used to pump protons by various mechanisms in the three respiratory enzyme complexes.

Expert Solution & Answer

Answer to Problem 1P

Correct answer: The statement is true.

Explanation of Solution

In mitochondria, the electron transfer process starts when two electrons and one proton are separated from NADH to generate NAD⁺ molecules. These electrons are passed to the first of about 20 different electron carries in the respiratory chain. Each respiratory enzyme complex is composed of protein subunits that are placed in the inner mitochondrial membrane. Every complex in the chain has a higher affinity for electrons than its predecessors. Electrons also pass sequentially from one complex to another complex until they finally move to the molecular oxygen.

As the high-energy electron travels from lower redox potential electron carrier to the high redox potential, energy is liberated in the form of ATP. Hence, electron flows across a series of electron carriers to release energy in a series. Stepwise release of energy is important because energy would be lost as heat in case of sudden energy release. Thus, for the efficient utilization of the released energy from the electron, it is important that the respiratory complexes are organized in a structurally ordered manner in the mitochondrial membrane.

Hence, the statement is true.

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Answer 4

Question

Chapter 14, Problem 1P

44322-14-1P

Summary Introduction

To examine: Whether the statement, “The three respiratory enzyme complexes in the mitochondrial inner membrane tend to associate with each other in ways that facilitate the correct transfer of electrons between appropriate complexes.”, is true or false.

Introduction: The respiratory chain in the inner mitochondrial membrane contains three respiratory enzyme complexes, across which electrons proceed on their way from NADH to O₂. In these complexes, electrons are transferred along with a series of protein-bound electron carriers. As the electrons travel toward lower-energy levels, it releases energy, and that energy is used to pump protons by various mechanisms in the three respiratory enzyme complexes.

Expert Solution & Answer

Answer to Problem 1P

Correct answer: The statement is true.

Explanation of Solution

In mitochondria, the electron transfer process starts when two electrons and one proton are separated from NADH to generate NAD⁺ molecules. These electrons are passed to the first of about 20 different electron carries in the respiratory chain. Each respiratory enzyme complex is composed of protein subunits that are placed in the inner mitochondrial membrane. Every complex in the chain has a higher affinity for electrons than its predecessors. Electrons also pass sequentially from one complex to another complex until they finally move to the molecular oxygen.

As the high-energy electron travels from lower redox potential electron carrier to the high redox potential, energy is liberated in the form of ATP. Hence, electron flows across a series of electron carriers to release energy in a series. Stepwise release of energy is important because energy would be lost as heat in case of sudden energy release. Thus, for the efficient utilization of the released energy from the electron, it is important that the respiratory complexes are organized in a structurally ordered manner in the mitochondrial membrane.

Hence, the statement is true.

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Answer 5

Chapter 14, Problem 1P

44322-14-1P

Summary Introduction

To examine: Whether the statement, “The three respiratory enzyme complexes in the mitochondrial inner membrane tend to associate with each other in ways that facilitate the correct transfer of electrons between appropriate complexes.”, is true or false.

Introduction: The respiratory chain in the inner mitochondrial membrane contains three respiratory enzyme complexes, across which electrons proceed on their way from NADH to O₂. In these complexes, electrons are transferred along with a series of protein-bound electron carriers. As the electrons travel toward lower-energy levels, it releases energy, and that energy is used to pump protons by various mechanisms in the three respiratory enzyme complexes.

Expert Solution & Answer

Answer to Problem 1P

Correct answer: The statement is true.

Explanation of Solution

In mitochondria, the electron transfer process starts when two electrons and one proton are separated from NADH to generate NAD⁺ molecules. These electrons are passed to the first of about 20 different electron carries in the respiratory chain. Each respiratory enzyme complex is composed of protein subunits that are placed in the inner mitochondrial membrane. Every complex in the chain has a higher affinity for electrons than its predecessors. Electrons also pass sequentially from one complex to another complex until they finally move to the molecular oxygen.

As the high-energy electron travels from lower redox potential electron carrier to the high redox potential, energy is liberated in the form of ATP. Hence, electron flows across a series of electron carriers to release energy in a series. Stepwise release of energy is important because energy would be lost as heat in case of sudden energy release. Thus, for the efficient utilization of the released energy from the electron, it is important that the respiratory complexes are organized in a structurally ordered manner in the mitochondrial membrane.

Hence, the statement is true.

Answer 6

Chapter 14, Problem 1P

44322-14-1P

Summary Introduction

To examine: Whether the statement, “The three respiratory enzyme complexes in the mitochondrial inner membrane tend to associate with each other in ways that facilitate the correct transfer of electrons between appropriate complexes.”, is true or false.

Introduction: The respiratory chain in the inner mitochondrial membrane contains three respiratory enzyme complexes, across which electrons proceed on their way from NADH to O₂. In these complexes, electrons are transferred along with a series of protein-bound electron carriers. As the electrons travel toward lower-energy levels, it releases energy, and that energy is used to pump protons by various mechanisms in the three respiratory enzyme complexes.

Expert Solution & Answer

Answer to Problem 1P

Correct answer: The statement is true.

Explanation of Solution

In mitochondria, the electron transfer process starts when two electrons and one proton are separated from NADH to generate NAD⁺ molecules. These electrons are passed to the first of about 20 different electron carries in the respiratory chain. Each respiratory enzyme complex is composed of protein subunits that are placed in the inner mitochondrial membrane. Every complex in the chain has a higher affinity for electrons than its predecessors. Electrons also pass sequentially from one complex to another complex until they finally move to the molecular oxygen.

As the high-energy electron travels from lower redox potential electron carrier to the high redox potential, energy is liberated in the form of ATP. Hence, electron flows across a series of electron carriers to release energy in a series. Stepwise release of energy is important because energy would be lost as heat in case of sudden energy release. Thus, for the efficient utilization of the released energy from the electron, it is important that the respiratory complexes are organized in a structurally ordered manner in the mitochondrial membrane.

Hence, the statement is true.

Answer 7

Chapter 14, Problem 1P

44322-14-1P

Summary Introduction

To examine: Whether the statement, “The three respiratory enzyme complexes in the mitochondrial inner membrane tend to associate with each other in ways that facilitate the correct transfer of electrons between appropriate complexes.”, is true or false.

Introduction: The respiratory chain in the inner mitochondrial membrane contains three respiratory enzyme complexes, across which electrons proceed on their way from NADH to O₂. In these complexes, electrons are transferred along with a series of protein-bound electron carriers. As the electrons travel toward lower-energy levels, it releases energy, and that energy is used to pump protons by various mechanisms in the three respiratory enzyme complexes.

Answer 8

Expert Solution & Answer

Answer to Problem 1P

Correct answer: The statement is true.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Explanation of Solution

In mitochondria, the electron transfer process starts when two electrons and one proton are separated from NADH to generate NAD⁺ molecules. These electrons are passed to the first of about 20 different electron carries in the respiratory chain. Each respiratory enzyme complex is composed of protein subunits that are placed in the inner mitochondrial membrane. Every complex in the chain has a higher affinity for electrons than its predecessors. Electrons also pass sequentially from one complex to another complex until they finally move to the molecular oxygen.

As the high-energy electron travels from lower redox potential electron carrier to the high redox potential, energy is liberated in the form of ATP. Hence, electron flows across a series of electron carriers to release energy in a series. Stepwise release of energy is important because energy would be lost as heat in case of sudden energy release. Thus, for the efficient utilization of the released energy from the electron, it is important that the respiratory complexes are organized in a structurally ordered manner in the mitochondrial membrane.

Hence, the statement is true.

Answer 12

Ch. 14 - Prob. 1P Ch. 14 - Prob. 2P Ch. 14 - Prob. 3P Ch. 14 - Prob. 4P Ch. 14 - Prob. 5P Ch. 14 - Prob. 6P Ch. 14 - Prob. 7P Ch. 14 - Prob. 8P Ch. 14 - Prob. 9P Ch. 14 - Prob. 10P

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