The ultimate electron acceptor in the respiration process is molecular oxygen. Electron transfer through the respiratory chain takes place through a complex series of oxidation-reduction reactions. Some of the electron transport steps use iron-containing proteins called cytochromes. All cytochromes transport electrons by convening the iron in the cytochrome. from the +3 to the +2 oxidation state. Consider the following reduction potentials for three different cytochromes used in the transfer process of electrons to oxygen (the potentials have been corrected for pH and for temperature): In the electron transfer series, electrons are transferred from one cytochrome to another. Using this information, determine the cytochrome order necessary for spontaneous transport of electrons from one cytochrome to another, which eventually will lead to electron transfer to O 2 .

Q: Expert Answer

Interpretation Introduction Interpretation: The cytochrome order necessary for spontaneous transport of electrons from one cytochrome to another, which eventually will lead to electron transfer to O 2 is to be stated. Concept introduction: The reduction potential is defined as the ability of a chemical species to gain electrons and get reduced. It is also known as redox potential and measured in volts. The species will get reduced more likely when they have more positive reduction potential value. To determine: The cytochrome order necessary for spontaneous transport of electrons from one cytochrome to another, which eventually will lead to electron transfer to O 2 . Explanation Explanation Given The reduction potential of cytochrome a is E = 0.3 85 V . The reduction potential of cytochrome b is E = 0.030 V . The reduction potential of cytochrome c is E = 0.254 V . The more positive is the reduction potential of the species greater is the tendency to gain electrons from the other species with lower reduction potential

Question

Still sussing out bartleby?

Answer 1

BuyFind

Chemistry: An Atoms First Approach

2nd Edition

Steven S. Zumdahl + 1 other

Publisher: Cengage Learning

ISBN: 9781305079243

Solutions

Chapter

Section

Answer 2

BuyFind

Chemistry: An Atoms First Approach

2nd Edition

Steven S. Zumdahl + 1 other

Publisher: Cengage Learning

ISBN: 9781305079243

Solutions

Chapter

Section

Answer 3

Solutions

Chapter

Section

Answer 4

Chapter

Section

Answer 5

Interpretation Introduction

Interpretation: The cytochrome order necessary for spontaneous transport of electrons from one cytochrome to another, which eventually will lead to electron transfer to O2 is to be stated.

Concept introduction: The reduction potential is defined as the ability of a chemical species to gain electrons and get reduced. It is also known as redox potential and measured in volts. The species will get reduced more likely when they have more positive reduction potential value.

To determine: The cytochrome order necessary for spontaneous transport of electrons from one cytochrome to another, which eventually will lead to electron transfer to O2 .

Explanation of Solution

Explanation

Given

The reduction potential of cytochrome a is E=0.385 V .

The reduction potential of cytochrome b is E=0.030 V .

The reduction potential of cytochrome c is E=0.254 V .

The more positive is the reduction potential of the species greater is the tendency to gain electrons from the other species with lower reduction potential

Chemistry: An Atoms First Approach

Solutions

Chemistry: An Atoms First Approach

Explanation of Solution

Still sussing out bartleby?

The Solution to Your Study Problems

Chapter 17 Solutions

Additional Science Textbook Solutions