To examine: Whether the statement “all second messengers are water-soluble and diffuse freely through the cytosol” is true or false. Introduction: Second messengers are small intracellular signaling molecules which are released in response to extracellular signals known as first messengers. They are of three types- hydrophobic, hydrophilic, and gaseous.

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Answer 1

Question

Chapter 15, Problem 1P

Summary Introduction

To examine: Whether the statement “all second messengers are water-soluble and diffuse freely through the cytosol” is true or false.

Introduction:

Second messengers are small intracellular signaling molecules which are released in response to extracellular signals known as first messengers. They are of three types- hydrophobic, hydrophilic, and gaseous.

Expert Solution & Answer

Answer to Problem 1P

Correct answer: The statement is false.

Explanation of Solution

Second messengers are classified into three types: hydrophobic, hydrophilic, and gaseous. Hydrophobic molecules are water insoluble (fat soluble) and diffuse from the plasma membrane, for example, diacyl glycerol. Hydrophilic molecules such as cyclic AMP are water soluble and diffuse in the cytosol. Gaseous molecules such as carbon monoxide can diffuse through both plasma membrane and cytosol. Thus, all second messengers are not water-soluble.

Hence, the statement is false.

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Answer 2

Question

Chapter 15, Problem 1P

Summary Introduction

To examine: Whether the statement “all second messengers are water-soluble and diffuse freely through the cytosol” is true or false.

Introduction:

Second messengers are small intracellular signaling molecules which are released in response to extracellular signals known as first messengers. They are of three types- hydrophobic, hydrophilic, and gaseous.

Expert Solution & Answer

Answer to Problem 1P

Correct answer: The statement is false.

Explanation of Solution

Second messengers are classified into three types: hydrophobic, hydrophilic, and gaseous. Hydrophobic molecules are water insoluble (fat soluble) and diffuse from the plasma membrane, for example, diacyl glycerol. Hydrophilic molecules such as cyclic AMP are water soluble and diffuse in the cytosol. Gaseous molecules such as carbon monoxide can diffuse through both plasma membrane and cytosol. Thus, all second messengers are not water-soluble.

Hence, the statement is false.

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Answer 3

Question

Chapter 15, Problem 1P

Summary Introduction

To examine: Whether the statement “all second messengers are water-soluble and diffuse freely through the cytosol” is true or false.

Introduction:

Second messengers are small intracellular signaling molecules which are released in response to extracellular signals known as first messengers. They are of three types- hydrophobic, hydrophilic, and gaseous.

Expert Solution & Answer

Answer to Problem 1P

Correct answer: The statement is false.

Explanation of Solution

Second messengers are classified into three types: hydrophobic, hydrophilic, and gaseous. Hydrophobic molecules are water insoluble (fat soluble) and diffuse from the plasma membrane, for example, diacyl glycerol. Hydrophilic molecules such as cyclic AMP are water soluble and diffuse in the cytosol. Gaseous molecules such as carbon monoxide can diffuse through both plasma membrane and cytosol. Thus, all second messengers are not water-soluble.

Hence, the statement is false.

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Answer 4

Question

Chapter 15, Problem 1P

Summary Introduction

To examine: Whether the statement “all second messengers are water-soluble and diffuse freely through the cytosol” is true or false.

Introduction:

Second messengers are small intracellular signaling molecules which are released in response to extracellular signals known as first messengers. They are of three types- hydrophobic, hydrophilic, and gaseous.

Expert Solution & Answer

Answer to Problem 1P

Correct answer: The statement is false.

Explanation of Solution

Second messengers are classified into three types: hydrophobic, hydrophilic, and gaseous. Hydrophobic molecules are water insoluble (fat soluble) and diffuse from the plasma membrane, for example, diacyl glycerol. Hydrophilic molecules such as cyclic AMP are water soluble and diffuse in the cytosol. Gaseous molecules such as carbon monoxide can diffuse through both plasma membrane and cytosol. Thus, all second messengers are not water-soluble.

Hence, the statement is false.

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Answer 5

Chapter 15, Problem 1P

Summary Introduction

To examine: Whether the statement “all second messengers are water-soluble and diffuse freely through the cytosol” is true or false.

Introduction:

Second messengers are small intracellular signaling molecules which are released in response to extracellular signals known as first messengers. They are of three types- hydrophobic, hydrophilic, and gaseous.

Expert Solution & Answer

Answer to Problem 1P

Correct answer: The statement is false.

Explanation of Solution

Second messengers are classified into three types: hydrophobic, hydrophilic, and gaseous. Hydrophobic molecules are water insoluble (fat soluble) and diffuse from the plasma membrane, for example, diacyl glycerol. Hydrophilic molecules such as cyclic AMP are water soluble and diffuse in the cytosol. Gaseous molecules such as carbon monoxide can diffuse through both plasma membrane and cytosol. Thus, all second messengers are not water-soluble.

Hence, the statement is false.

Answer 6

Chapter 15, Problem 1P

Summary Introduction

To examine: Whether the statement “all second messengers are water-soluble and diffuse freely through the cytosol” is true or false.

Introduction:

Second messengers are small intracellular signaling molecules which are released in response to extracellular signals known as first messengers. They are of three types- hydrophobic, hydrophilic, and gaseous.

Expert Solution & Answer

Answer to Problem 1P

Correct answer: The statement is false.

Explanation of Solution

Second messengers are classified into three types: hydrophobic, hydrophilic, and gaseous. Hydrophobic molecules are water insoluble (fat soluble) and diffuse from the plasma membrane, for example, diacyl glycerol. Hydrophilic molecules such as cyclic AMP are water soluble and diffuse in the cytosol. Gaseous molecules such as carbon monoxide can diffuse through both plasma membrane and cytosol. Thus, all second messengers are not water-soluble.

Hence, the statement is false.

Answer 7

Chapter 15, Problem 1P

Summary Introduction

To examine: Whether the statement “all second messengers are water-soluble and diffuse freely through the cytosol” is true or false.

Introduction:

Second messengers are small intracellular signaling molecules which are released in response to extracellular signals known as first messengers. They are of three types- hydrophobic, hydrophilic, and gaseous.

Answer 8

Expert Solution & Answer

Answer to Problem 1P

Correct answer: The statement is false.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Explanation of Solution

Second messengers are classified into three types: hydrophobic, hydrophilic, and gaseous. Hydrophobic molecules are water insoluble (fat soluble) and diffuse from the plasma membrane, for example, diacyl glycerol. Hydrophilic molecules such as cyclic AMP are water soluble and diffuse in the cytosol. Gaseous molecules such as carbon monoxide can diffuse through both plasma membrane and cytosol. Thus, all second messengers are not water-soluble.

Hence, the statement is false.

Answer 12

Ch. 15 - Prob. 1P Ch. 15 - Prob. 2P Ch. 15 - Prob. 3P Ch. 15 - Prob. 4P Ch. 15 - Prob. 5P Ch. 15 - Prob. 6P Ch. 15 - Prob. 7P Ch. 15 - Prob. 8P Ch. 15 - Prob. 9P Ch. 15 - Prob. 10P

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Answer to Problem 1P

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