Paracrine signaling is characterized by ligands that are a. produced by the cell itself. b. secreted by neighboring cells. c. present on the plasma membrane of neighboring cells. d. secreted by distant cells.

Question

Want to see more full solutions like this?

Answer 1

Textbook Question

Chapter 9, Problem 1U

Paracrine signaling is characterized by ligands that are

a. produced by the cell itself.

b. secreted by neighboring cells.

c. present on the plasma membrane of neighboring cells.

d. secreted by distant cells.

Expert Solution & Answer

Summary Introduction

Introduction:

Cells can communicate with each other by various mechanisms such as direct contact, paracrine signaling, endocrine signaling and synaptic signaling.

Answer to Problem 1U

Correct answer:

Paracrine signaling is characterized by the ligands that are secreted by neighboring cells. Therefore, option b. is correct.

Explanation of Solution

Reason for the correct statement:

The paracrine signaling is a type of cell-cell communication in which a cell produces signaling molecules (ligands) that diffuse through the extracellular matrix to affect cells present in the nearby areas.

Option b. is given as “secreted by neighboring cells”.

As “paracrine signaling involves secretion of ligands by the neighboring cells”, is the right answer.

Hence, option b. is correct.

Reason for the incorrect statements:

Option a. is given as “produced by the cells itself”.

In autocrine signaling, the ligands produced by a cell bind to its own receptor. So, it is a wrong answer.

Option c. is given as “present on the plasma membrane of neighboring cells”.

In direct signaling, the ligand present on a cell bind to a receptor present on the plasma membrane of a neighboring cell. So, it is a wrong answer.

Option d. is given as “secreted by distant cells”.

In endocrine signaling, a cell produces ligands that enter the circulatory system to act on the distant target cells. So, it is a wrong answer.

Hence, options a., c, and d. are incorrect.

Conclusion

Paracrine signaling involves secretion of ligands that acts on the target cells present in the neighboring areas.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Students have asked these similar questions

Intracellular receptors bind to signaling molecules that are A. anionic. B. cationic. C. nonpolar. D. polypeptides.

A biochemist is designing a new drug that will mimic the shape and function of a particular intercellular signaling molecule. Therefore she must produce a molecule that will bind to the receptor protein and... A. produce a cellular response by altering the Na+/K+ pump located near the receptor site. B. induce a change in the receptor molecule shape, which will ultimately prevent a cellular response. C. induce a change in the receptor molecule shape, which will ultimately produce a cellular response. D. induce a change in the phospholipid bilayer that causes a polar reversal allowing the molecules to be endocytose (engulfed).

A cell has epinephrine receptors, yet is unable to respond to epinephrine signaling. One possible reason is: A. The cell has no DNA. B. The cell is missing a functional G-protein or adenylyl cyclase. C. All of the epinephrine receptors are on the cell’s surface. (They’re supposed to be in the cytoplasm!) D. Both A and C.

Answer 2

Textbook Question

Chapter 9, Problem 1U

Paracrine signaling is characterized by ligands that are

a. produced by the cell itself.

b. secreted by neighboring cells.

c. present on the plasma membrane of neighboring cells.

d. secreted by distant cells.

Expert Solution & Answer

Summary Introduction

Introduction:

Cells can communicate with each other by various mechanisms such as direct contact, paracrine signaling, endocrine signaling and synaptic signaling.

Answer to Problem 1U

Correct answer:

Paracrine signaling is characterized by the ligands that are secreted by neighboring cells. Therefore, option b. is correct.

Explanation of Solution

Reason for the correct statement:

The paracrine signaling is a type of cell-cell communication in which a cell produces signaling molecules (ligands) that diffuse through the extracellular matrix to affect cells present in the nearby areas.

Option b. is given as “secreted by neighboring cells”.

As “paracrine signaling involves secretion of ligands by the neighboring cells”, is the right answer.

Hence, option b. is correct.

Reason for the incorrect statements:

Option a. is given as “produced by the cells itself”.

In autocrine signaling, the ligands produced by a cell bind to its own receptor. So, it is a wrong answer.

Option c. is given as “present on the plasma membrane of neighboring cells”.

In direct signaling, the ligand present on a cell bind to a receptor present on the plasma membrane of a neighboring cell. So, it is a wrong answer.

Option d. is given as “secreted by distant cells”.

In endocrine signaling, a cell produces ligands that enter the circulatory system to act on the distant target cells. So, it is a wrong answer.

Hence, options a., c, and d. are incorrect.

Conclusion

Paracrine signaling involves secretion of ligands that acts on the target cells present in the neighboring areas.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 3

Textbook Question

Chapter 9, Problem 1U

Paracrine signaling is characterized by ligands that are

a. produced by the cell itself.

b. secreted by neighboring cells.

c. present on the plasma membrane of neighboring cells.

d. secreted by distant cells.

Expert Solution & Answer

Summary Introduction

Introduction:

Cells can communicate with each other by various mechanisms such as direct contact, paracrine signaling, endocrine signaling and synaptic signaling.

Answer to Problem 1U

Correct answer:

Paracrine signaling is characterized by the ligands that are secreted by neighboring cells. Therefore, option b. is correct.

Explanation of Solution

Reason for the correct statement:

The paracrine signaling is a type of cell-cell communication in which a cell produces signaling molecules (ligands) that diffuse through the extracellular matrix to affect cells present in the nearby areas.

Option b. is given as “secreted by neighboring cells”.

As “paracrine signaling involves secretion of ligands by the neighboring cells”, is the right answer.

Hence, option b. is correct.

Reason for the incorrect statements:

Option a. is given as “produced by the cells itself”.

In autocrine signaling, the ligands produced by a cell bind to its own receptor. So, it is a wrong answer.

Option c. is given as “present on the plasma membrane of neighboring cells”.

In direct signaling, the ligand present on a cell bind to a receptor present on the plasma membrane of a neighboring cell. So, it is a wrong answer.

Option d. is given as “secreted by distant cells”.

In endocrine signaling, a cell produces ligands that enter the circulatory system to act on the distant target cells. So, it is a wrong answer.

Hence, options a., c, and d. are incorrect.

Conclusion

Paracrine signaling involves secretion of ligands that acts on the target cells present in the neighboring areas.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 4

Textbook Question

Chapter 9, Problem 1U

Paracrine signaling is characterized by ligands that are

a. produced by the cell itself.

b. secreted by neighboring cells.

c. present on the plasma membrane of neighboring cells.

d. secreted by distant cells.

Expert Solution & Answer

Summary Introduction

Introduction:

Cells can communicate with each other by various mechanisms such as direct contact, paracrine signaling, endocrine signaling and synaptic signaling.

Answer to Problem 1U

Correct answer:

Paracrine signaling is characterized by the ligands that are secreted by neighboring cells. Therefore, option b. is correct.

Explanation of Solution

Reason for the correct statement:

The paracrine signaling is a type of cell-cell communication in which a cell produces signaling molecules (ligands) that diffuse through the extracellular matrix to affect cells present in the nearby areas.

Option b. is given as “secreted by neighboring cells”.

As “paracrine signaling involves secretion of ligands by the neighboring cells”, is the right answer.

Hence, option b. is correct.

Reason for the incorrect statements:

Option a. is given as “produced by the cells itself”.

In autocrine signaling, the ligands produced by a cell bind to its own receptor. So, it is a wrong answer.

Option c. is given as “present on the plasma membrane of neighboring cells”.

In direct signaling, the ligand present on a cell bind to a receptor present on the plasma membrane of a neighboring cell. So, it is a wrong answer.

Option d. is given as “secreted by distant cells”.

In endocrine signaling, a cell produces ligands that enter the circulatory system to act on the distant target cells. So, it is a wrong answer.

Hence, options a., c, and d. are incorrect.

Conclusion

Paracrine signaling involves secretion of ligands that acts on the target cells present in the neighboring areas.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 5

Textbook Question

Answer 6

Textbook Question

Answer 7

Expert Solution & Answer

Summary Introduction

Introduction:

Cells can communicate with each other by various mechanisms such as direct contact, paracrine signaling, endocrine signaling and synaptic signaling.

Answer to Problem 1U

Correct answer:

Paracrine signaling is characterized by the ligands that are secreted by neighboring cells. Therefore, option b. is correct.

Explanation of Solution

Reason for the correct statement:

The paracrine signaling is a type of cell-cell communication in which a cell produces signaling molecules (ligands) that diffuse through the extracellular matrix to affect cells present in the nearby areas.

Option b. is given as “secreted by neighboring cells”.

As “paracrine signaling involves secretion of ligands by the neighboring cells”, is the right answer.

Hence, option b. is correct.

Reason for the incorrect statements:

Option a. is given as “produced by the cells itself”.

In autocrine signaling, the ligands produced by a cell bind to its own receptor. So, it is a wrong answer.

Option c. is given as “present on the plasma membrane of neighboring cells”.

In direct signaling, the ligand present on a cell bind to a receptor present on the plasma membrane of a neighboring cell. So, it is a wrong answer.

Option d. is given as “secreted by distant cells”.

In endocrine signaling, a cell produces ligands that enter the circulatory system to act on the distant target cells. So, it is a wrong answer.

Hence, options a., c, and d. are incorrect.

Conclusion

Paracrine signaling involves secretion of ligands that acts on the target cells present in the neighboring areas.

Answer 8

Expert Solution & Answer

Summary Introduction

Introduction:

Cells can communicate with each other by various mechanisms such as direct contact, paracrine signaling, endocrine signaling and synaptic signaling.

Answer to Problem 1U

Correct answer:

Paracrine signaling is characterized by the ligands that are secreted by neighboring cells. Therefore, option b. is correct.

Explanation of Solution

Reason for the correct statement:

The paracrine signaling is a type of cell-cell communication in which a cell produces signaling molecules (ligands) that diffuse through the extracellular matrix to affect cells present in the nearby areas.

Option b. is given as “secreted by neighboring cells”.

As “paracrine signaling involves secretion of ligands by the neighboring cells”, is the right answer.

Hence, option b. is correct.

Reason for the incorrect statements:

Option a. is given as “produced by the cells itself”.

In autocrine signaling, the ligands produced by a cell bind to its own receptor. So, it is a wrong answer.

Option c. is given as “present on the plasma membrane of neighboring cells”.

In direct signaling, the ligand present on a cell bind to a receptor present on the plasma membrane of a neighboring cell. So, it is a wrong answer.

Option d. is given as “secreted by distant cells”.

In endocrine signaling, a cell produces ligands that enter the circulatory system to act on the distant target cells. So, it is a wrong answer.

Hence, options a., c, and d. are incorrect.

Conclusion

Paracrine signaling involves secretion of ligands that acts on the target cells present in the neighboring areas.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Summary Introduction

Introduction:

Cells can communicate with each other by various mechanisms such as direct contact, paracrine signaling, endocrine signaling and synaptic signaling.

Answer 12

Answer to Problem 1U

Correct answer:

Paracrine signaling is characterized by the ligands that are secreted by neighboring cells. Therefore, option b. is correct.

Answer 13

Explanation of Solution

Reason for the correct statement:

The paracrine signaling is a type of cell-cell communication in which a cell produces signaling molecules (ligands) that diffuse through the extracellular matrix to affect cells present in the nearby areas.

Option b. is given as “secreted by neighboring cells”.

As “paracrine signaling involves secretion of ligands by the neighboring cells”, is the right answer.

Hence, option b. is correct.

Reason for the incorrect statements:

Option a. is given as “produced by the cells itself”.

In autocrine signaling, the ligands produced by a cell bind to its own receptor. So, it is a wrong answer.

Option c. is given as “present on the plasma membrane of neighboring cells”.

In direct signaling, the ligand present on a cell bind to a receptor present on the plasma membrane of a neighboring cell. So, it is a wrong answer.

Option d. is given as “secreted by distant cells”.

In endocrine signaling, a cell produces ligands that enter the circulatory system to act on the distant target cells. So, it is a wrong answer.

Hence, options a., c, and d. are incorrect.

Answer 14

Conclusion

Paracrine signaling involves secretion of ligands that acts on the target cells present in the neighboring areas.

Answer 15

Ch. 9.1 - Prob. 1LO Ch. 9.1 - Prob. 2LO Ch. 9.2 - Prob. 1LO Ch. 9.3 - Prob. 1LO Ch. 9.3 - Prob. 2LO Ch. 9.4 - Prob. 1LO Ch. 9.4 - Describe how information crosses the membrane in...Ch. 9.4 - Prob. 3LO Ch. 9.4 - Prob. 4LO Ch. 9.5 - Prob. 1LO

Paracrine signaling is characterized by ligands that are a. produced by the cell itself. b. secreted by neighboring cells. c. present on the plasma membrane of neighboring cells. d. secreted by distant cells.

Concept explainers

Videos

Answer to Problem 1U

Explanation of Solution

Want to see more full solutions like this?

Chapter 9 Solutions