Becker's World of the Cell (9th Edition)
Becker's World of the Cell (9th Edition)
9th Edition
ISBN: 9780321934925
Author: Jeff Hardin, Gregory Paul Bertoni
Publisher: PEARSON
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Chapter 8, Problem 8.6PS

(a)

Summary Introduction

To determine: An example in which ATP is used to generate and maintain an ion gradient and a way that an ion gradient can be generated and maintained.

Introduction: The transport of sodium and potassium ions across the membrane is an active transport process, which involve the hydrolysis of adenosine triphosphate (ATP) to provide the energy. The ion gradients maintained across the plasma membranes of most cells play a significant role in cellular energetic. Ion gradients are often either generated by the hydrolysis of ATP or used to make ATP by the phosphorylation of ADP.

(b)

Summary Introduction

To describe: An example in which an ion gradient is used to make ATP and another use for ion gradient.

Introduction: The transport of sodium and potassium ions across the membrane is an active transport process, which involves the hydrolysis of adenosine triphosphate (ATP) to provide energy. The ion gradients maintained across the plasma membranes of most cells play a significant role in cellular energetic. Ion gradients are often either generated by the hydrolysis of ATP or used to make ATP by the phosphorylation of ADP.

(c)

Summary Introduction

To describe: Hydrolysis of ATP to drive the outward transport of sodium ions on a 2:1 and 3:1 basis.

Introduction: The transport of sodium and potassium ions across the membrane is an active transport process, which involve the hydrolysis of adenosine triphosphate (ATP) to provide the energy. The ion gradients maintained across the plasma membranes of most cells play a significant role in cellular energetic. Ion gradients are often either generated by the hydrolysis of ATP or used to make ATP by the phosphorylation of ADP.

(d)

Summary Introduction

To determine: Use of photo gradient by cell to drive ATP synthesis on a 1:1 and 1:2 basis.

Introduction: The transport of sodium and potassium ions across the membrane is an active transport process, which involve the hydrolysis of adenosine triphosphate (ATP) to provide the energy. The ion gradients maintained across the plasma membranes of most cells play a significant role in cellular energetic. Ion gradients are often either generated by the hydrolysis of ATP or used to make ATP by the phosphorylation of ADP.

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