The importance of fixed position of the electron transport proteins within the cell membrane and the consequences if they got loose in aqueous solutions. Introduction: Electron transport chain is the series of complexes that consume oxygen and pass electrons from electron donors to electron acceptors by means of various redox reactions . A proton gradient is formed across the inner mitochondrial membrane and this is responsible for driving ATP (adenosine triphosphate) synthesis.

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Definition Definition Set of metabolic processes and reactions that produce energy from organic substances such as glucose. Cellular respiration takes place in the organism’s cells, where the chemical energy from nutrients or molecules of oxygen is converted into adenosine triphosphate (ATP). Cellular respiration that occurs in the presence of oxygen is called aerobic respiration; in the absence of oxygen, it is called anaerobic respiration.

Chapter 14.3, Problem 2TQ

Summary Introduction

To review:

The importance of fixed position of the electron transport proteins within the cell membrane and the consequences if they got loose in aqueous solutions.

Introduction:

Electron transport chain is the series of complexes that consume oxygen and pass electrons from electron donors to electron acceptors by means of various redox reactions. A proton gradient is formed across the inner mitochondrial membrane and this is responsible for driving ATP (adenosine triphosphate) synthesis.

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The creation of the H+ gradient in the mitochondria that powers ATP synthase is an example of: a)Diffusion b)Passive Transport c)Active Transport

Figure 7.11 Dinitrophenol (DNP) is an "uncoupler" that makes the inner mitochondrial membrane "leaky" to protons. It was used until 1938 as a weight- loss drug. What effect would you expect DNP to have on the change in pH across the inner mitochondrial membrane? Why do you think this might be an effective weight-loss drug? Intermembrane space Mitochondrial matrix ATP Synthase ADP Inner mitochondrial membrane ATP Figure 7.11 ATP synthase is a complex, molecular machine that uses a proton (H) gradient to form ATP from ADP and inorganic phosphate (Pi). (Credit: modification of work by Klaus Hoffmeier)

TOM A given enzyme is able to utilize five different substrates. The Km's have measured for each substrate. Which substrate is most likely the biochemi relevant one in the cell? In other words, which one is most likely the pred vivo substrate for this enzyme? (Choose the one best answer). Substrate 1 with KM= 4.7 × 10-1 M. Substrate 2 with Km = 1.5 × 10-2 M. Substrate 3 with KM = 1.5 x 10-8 M. × Substrate 4 with Km= 4.7 × 10-³ M Substrate 5 with KM = 4. 7 × 10-5 M

Answer 2

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Definition Definition Set of metabolic processes and reactions that produce energy from organic substances such as glucose. Cellular respiration takes place in the organism’s cells, where the chemical energy from nutrients or molecules of oxygen is converted into adenosine triphosphate (ATP). Cellular respiration that occurs in the presence of oxygen is called aerobic respiration; in the absence of oxygen, it is called anaerobic respiration.

Chapter 14.3, Problem 2TQ

Summary Introduction

To review:

The importance of fixed position of the electron transport proteins within the cell membrane and the consequences if they got loose in aqueous solutions.

Introduction:

Electron transport chain is the series of complexes that consume oxygen and pass electrons from electron donors to electron acceptors by means of various redox reactions. A proton gradient is formed across the inner mitochondrial membrane and this is responsible for driving ATP (adenosine triphosphate) synthesis.

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Answer 3

Question

Definition Definition Set of metabolic processes and reactions that produce energy from organic substances such as glucose. Cellular respiration takes place in the organism’s cells, where the chemical energy from nutrients or molecules of oxygen is converted into adenosine triphosphate (ATP). Cellular respiration that occurs in the presence of oxygen is called aerobic respiration; in the absence of oxygen, it is called anaerobic respiration.

Chapter 14.3, Problem 2TQ

Summary Introduction

To review:

The importance of fixed position of the electron transport proteins within the cell membrane and the consequences if they got loose in aqueous solutions.

Introduction:

Electron transport chain is the series of complexes that consume oxygen and pass electrons from electron donors to electron acceptors by means of various redox reactions. A proton gradient is formed across the inner mitochondrial membrane and this is responsible for driving ATP (adenosine triphosphate) synthesis.

Expert Solution & Answer

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Check out a sample textbook solution

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Answer 4

Question

Definition Definition Set of metabolic processes and reactions that produce energy from organic substances such as glucose. Cellular respiration takes place in the organism’s cells, where the chemical energy from nutrients or molecules of oxygen is converted into adenosine triphosphate (ATP). Cellular respiration that occurs in the presence of oxygen is called aerobic respiration; in the absence of oxygen, it is called anaerobic respiration.

Chapter 14.3, Problem 2TQ

Summary Introduction