What happens when a resting neuron's membrane depolarizes? A. There is a net diffusion of Na + out of the cell. B. The equilibrium potential for K + ( E K ) becomes more positive. C. The neuron’s membrane voltage becomes more positive. D. The cell’s inside is more negative than the outside.

Question

Want to see more full solutions like this?

Answer 1

Textbook Question

Chapter 37, Problem 1TYU

What happens when a resting neuron's membrane depolarizes?

A. There is a net diffusion of Na⁺ out of the cell.
B. The equilibrium potential for K⁺ (E_K) becomes more positive.
C. The neuron’s membrane voltage becomes more positive.
D. The cell’s inside is more negative than the outside.

Expert Solution & Answer

Summary Introduction

Introduction:

In neuronal signaling, the ions have an important role. Like rest of the cells, the ions are also unequally distributed in the neurons. They are distributed unequally between the surrounding fluid and the cells interior region. Thus, membrane potential means the difference in voltage or charge across a plasma membrane. In case of the resting nerve; the one that does not send signals, the membrane potential is known as the resting potential.

Answer to Problem 1TYU

Correct answer:

When the resting neuron’s membrane depolarizes, the voltage of the neuron’s membrane becomes more positive. Therefore, option (C) is correct.

Explanation of Solution

Reason for the correct statement:

Na⁺ (sodium) and K⁺ (potassium) ions are very important for forming the resting potential. When depolarization occurs, there is inflow of Na⁺, which makes the interior more positive.

Option (C) is given as “The neuron’s membrane voltage becomes more positive”.

“When the resting neuron’s membrane depolarizes, the voltage of the neuron’s membrane becomes more positive”, it is the right answer.

Hence, option (C) is correct.

Reasons for the incorrect statements:

Option (A) is given as “There is a net diffusion of Na⁺ out of the cell”.

During depolarization, the sodium ions move in the cells not outside the cells. So, it is a wrong answer.

Option (B) is given as “The equilibrium potential for K⁺ (E_k) becomes more positive”.

During depolarization, the equilibrium potential for K⁺ is negative. So, it is a wrong answer.

Option (D) is given as “The cell’s inside is more negative than the outside”.

During depolarization, the cells interior is more positive. So, it is a wrong answer.

Hence, options (A), (B), and (D) are incorrect.

Conclusion

When the resting neuron’s membrane depolarizes, the voltage of the neuron’s membrane becomes more positive.

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

2. In one of the reactions of the citric acid cycle, malate is oxidized to oxaloacetate. When this reaction is considered in isolation, a small amount of malate remains and is not oxidized. The best term to explain this is a. enthalpy b. entropy c. equilibrium d. free energy e. loss of energy

18. The citric acid cycle takes place in a. the chloroplasts b. the cytosol c. the inner mitochondrial membrane d. between the two mitochondrial membranes e. the mitochondrial matrix 40 WIL

8. Most reactions of anaerobic respiration are similar to a. aerobic respiration b. photosynthesis c. lactic acid fermentation d. alcoholic fermentation e. both c and d

Answer 2

Textbook Question

Chapter 37, Problem 1TYU

What happens when a resting neuron's membrane depolarizes?

A. There is a net diffusion of Na⁺ out of the cell.
B. The equilibrium potential for K⁺ (E_K) becomes more positive.
C. The neuron’s membrane voltage becomes more positive.
D. The cell’s inside is more negative than the outside.

Expert Solution & Answer

Summary Introduction

Introduction:

In neuronal signaling, the ions have an important role. Like rest of the cells, the ions are also unequally distributed in the neurons. They are distributed unequally between the surrounding fluid and the cells interior region. Thus, membrane potential means the difference in voltage or charge across a plasma membrane. In case of the resting nerve; the one that does not send signals, the membrane potential is known as the resting potential.

Answer to Problem 1TYU

Correct answer:

When the resting neuron’s membrane depolarizes, the voltage of the neuron’s membrane becomes more positive. Therefore, option (C) is correct.

Explanation of Solution

Reason for the correct statement:

Na⁺ (sodium) and K⁺ (potassium) ions are very important for forming the resting potential. When depolarization occurs, there is inflow of Na⁺, which makes the interior more positive.

Option (C) is given as “The neuron’s membrane voltage becomes more positive”.

“When the resting neuron’s membrane depolarizes, the voltage of the neuron’s membrane becomes more positive”, it is the right answer.

Hence, option (C) is correct.

Reasons for the incorrect statements:

Option (A) is given as “There is a net diffusion of Na⁺ out of the cell”.

During depolarization, the sodium ions move in the cells not outside the cells. So, it is a wrong answer.

Option (B) is given as “The equilibrium potential for K⁺ (E_k) becomes more positive”.

During depolarization, the equilibrium potential for K⁺ is negative. So, it is a wrong answer.

Option (D) is given as “The cell’s inside is more negative than the outside”.

During depolarization, the cells interior is more positive. So, it is a wrong answer.

Hence, options (A), (B), and (D) are incorrect.

Conclusion

When the resting neuron’s membrane depolarizes, the voltage of the neuron’s membrane becomes more positive.

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 37, Problem 1TYU

What happens when a resting neuron's membrane depolarizes?

A. There is a net diffusion of Na⁺ out of the cell.
B. The equilibrium potential for K⁺ (E_K) becomes more positive.
C. The neuron’s membrane voltage becomes more positive.
D. The cell’s inside is more negative than the outside.

Expert Solution & Answer

Summary Introduction

Introduction:

In neuronal signaling, the ions have an important role. Like rest of the cells, the ions are also unequally distributed in the neurons. They are distributed unequally between the surrounding fluid and the cells interior region. Thus, membrane potential means the difference in voltage or charge across a plasma membrane. In case of the resting nerve; the one that does not send signals, the membrane potential is known as the resting potential.

Answer to Problem 1TYU

Correct answer:

When the resting neuron’s membrane depolarizes, the voltage of the neuron’s membrane becomes more positive. Therefore, option (C) is correct.

Explanation of Solution

Reason for the correct statement:

Na⁺ (sodium) and K⁺ (potassium) ions are very important for forming the resting potential. When depolarization occurs, there is inflow of Na⁺, which makes the interior more positive.

Option (C) is given as “The neuron’s membrane voltage becomes more positive”.

“When the resting neuron’s membrane depolarizes, the voltage of the neuron’s membrane becomes more positive”, it is the right answer.

Hence, option (C) is correct.

Reasons for the incorrect statements:

Option (A) is given as “There is a net diffusion of Na⁺ out of the cell”.

During depolarization, the sodium ions move in the cells not outside the cells. So, it is a wrong answer.

Option (B) is given as “The equilibrium potential for K⁺ (E_k) becomes more positive”.

During depolarization, the equilibrium potential for K⁺ is negative. So, it is a wrong answer.

Option (D) is given as “The cell’s inside is more negative than the outside”.

During depolarization, the cells interior is more positive. So, it is a wrong answer.

Hence, options (A), (B), and (D) are incorrect.

Conclusion

When the resting neuron’s membrane depolarizes, the voltage of the neuron’s membrane becomes more positive.

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 37, Problem 1TYU

What happens when a resting neuron's membrane depolarizes?

A. There is a net diffusion of Na⁺ out of the cell.
B. The equilibrium potential for K⁺ (E_K) becomes more positive.
C. The neuron’s membrane voltage becomes more positive.
D. The cell’s inside is more negative than the outside.

Expert Solution & Answer

Summary Introduction

Introduction:

In neuronal signaling, the ions have an important role. Like rest of the cells, the ions are also unequally distributed in the neurons. They are distributed unequally between the surrounding fluid and the cells interior region. Thus, membrane potential means the difference in voltage or charge across a plasma membrane. In case of the resting nerve; the one that does not send signals, the membrane potential is known as the resting potential.

Answer to Problem 1TYU

Correct answer:

When the resting neuron’s membrane depolarizes, the voltage of the neuron’s membrane becomes more positive. Therefore, option (C) is correct.

Explanation of Solution

Reason for the correct statement:

Na⁺ (sodium) and K⁺ (potassium) ions are very important for forming the resting potential. When depolarization occurs, there is inflow of Na⁺, which makes the interior more positive.

Option (C) is given as “The neuron’s membrane voltage becomes more positive”.

“When the resting neuron’s membrane depolarizes, the voltage of the neuron’s membrane becomes more positive”, it is the right answer.

Hence, option (C) is correct.

Reasons for the incorrect statements:

Option (A) is given as “There is a net diffusion of Na⁺ out of the cell”.

During depolarization, the sodium ions move in the cells not outside the cells. So, it is a wrong answer.

Option (B) is given as “The equilibrium potential for K⁺ (E_k) becomes more positive”.

During depolarization, the equilibrium potential for K⁺ is negative. So, it is a wrong answer.

Option (D) is given as “The cell’s inside is more negative than the outside”.

During depolarization, the cells interior is more positive. So, it is a wrong answer.

Hence, options (A), (B), and (D) are incorrect.

Conclusion

When the resting neuron’s membrane depolarizes, the voltage of the neuron’s membrane becomes more positive.

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:

In neuronal signaling, the ions have an important role. Like rest of the cells, the ions are also unequally distributed in the neurons. They are distributed unequally between the surrounding fluid and the cells interior region. Thus, membrane potential means the difference in voltage or charge across a plasma membrane. In case of the resting nerve; the one that does not send signals, the membrane potential is known as the resting potential.

Answer to Problem 1TYU

Correct answer:

When the resting neuron’s membrane depolarizes, the voltage of the neuron’s membrane becomes more positive. Therefore, option (C) is correct.

Explanation of Solution

Reason for the correct statement:

Na⁺ (sodium) and K⁺ (potassium) ions are very important for forming the resting potential. When depolarization occurs, there is inflow of Na⁺, which makes the interior more positive.

Option (C) is given as “The neuron’s membrane voltage becomes more positive”.

“When the resting neuron’s membrane depolarizes, the voltage of the neuron’s membrane becomes more positive”, it is the right answer.

Hence, option (C) is correct.

Reasons for the incorrect statements:

Option (A) is given as “There is a net diffusion of Na⁺ out of the cell”.

During depolarization, the sodium ions move in the cells not outside the cells. So, it is a wrong answer.

Option (B) is given as “The equilibrium potential for K⁺ (E_k) becomes more positive”.

During depolarization, the equilibrium potential for K⁺ is negative. So, it is a wrong answer.

Option (D) is given as “The cell’s inside is more negative than the outside”.

During depolarization, the cells interior is more positive. So, it is a wrong answer.

Hence, options (A), (B), and (D) are incorrect.

Conclusion

When the resting neuron’s membrane depolarizes, the voltage of the neuron’s membrane becomes more positive.

Answer 8

Expert Solution & Answer

Summary Introduction

Introduction:

In neuronal signaling, the ions have an important role. Like rest of the cells, the ions are also unequally distributed in the neurons. They are distributed unequally between the surrounding fluid and the cells interior region. Thus, membrane potential means the difference in voltage or charge across a plasma membrane. In case of the resting nerve; the one that does not send signals, the membrane potential is known as the resting potential.

Answer to Problem 1TYU

Correct answer:

When the resting neuron’s membrane depolarizes, the voltage of the neuron’s membrane becomes more positive. Therefore, option (C) is correct.

Explanation of Solution

Reason for the correct statement:

Na⁺ (sodium) and K⁺ (potassium) ions are very important for forming the resting potential. When depolarization occurs, there is inflow of Na⁺, which makes the interior more positive.

Option (C) is given as “The neuron’s membrane voltage becomes more positive”.

“When the resting neuron’s membrane depolarizes, the voltage of the neuron’s membrane becomes more positive”, it is the right answer.

Hence, option (C) is correct.

Reasons for the incorrect statements:

Option (A) is given as “There is a net diffusion of Na⁺ out of the cell”.

During depolarization, the sodium ions move in the cells not outside the cells. So, it is a wrong answer.

Option (B) is given as “The equilibrium potential for K⁺ (E_k) becomes more positive”.

During depolarization, the equilibrium potential for K⁺ is negative. So, it is a wrong answer.

Option (D) is given as “The cell’s inside is more negative than the outside”.

During depolarization, the cells interior is more positive. So, it is a wrong answer.

Hence, options (A), (B), and (D) are incorrect.

Conclusion

When the resting neuron’s membrane depolarizes, the voltage of the neuron’s membrane becomes more positive.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Summary Introduction

Introduction:

In neuronal signaling, the ions have an important role. Like rest of the cells, the ions are also unequally distributed in the neurons. They are distributed unequally between the surrounding fluid and the cells interior region. Thus, membrane potential means the difference in voltage or charge across a plasma membrane. In case of the resting nerve; the one that does not send signals, the membrane potential is known as the resting potential.

Answer 12

Answer to Problem 1TYU

Correct answer:

When the resting neuron’s membrane depolarizes, the voltage of the neuron’s membrane becomes more positive. Therefore, option (C) is correct.

Answer 13

Explanation of Solution

Reason for the correct statement:

Na⁺ (sodium) and K⁺ (potassium) ions are very important for forming the resting potential. When depolarization occurs, there is inflow of Na⁺, which makes the interior more positive.

Option (C) is given as “The neuron’s membrane voltage becomes more positive”.

“When the resting neuron’s membrane depolarizes, the voltage of the neuron’s membrane becomes more positive”, it is the right answer.

Hence, option (C) is correct.

Reasons for the incorrect statements:

Option (A) is given as “There is a net diffusion of Na⁺ out of the cell”.

During depolarization, the sodium ions move in the cells not outside the cells. So, it is a wrong answer.

Option (B) is given as “The equilibrium potential for K⁺ (E_k) becomes more positive”.

During depolarization, the equilibrium potential for K⁺ is negative. So, it is a wrong answer.

Option (D) is given as “The cell’s inside is more negative than the outside”.

During depolarization, the cells interior is more positive. So, it is a wrong answer.

Hence, options (A), (B), and (D) are incorrect.

Answer 14

Conclusion

When the resting neuron’s membrane depolarizes, the voltage of the neuron’s membrane becomes more positive.

Answer 15

Ch. 37.1 - Prob. 1CC Ch. 37.1 - Describe the basic pathway of information flow...Ch. 37.1 - WHAT IF? How might increased branching of an axon...Ch. 37.2 - Under what circumstances could ions flow through...Ch. 37.2 - WHAT IF? Suppose a cells membrane potential shifts...Ch. 37.2 - Prob. 3CC Ch. 37.3 - How do action potentials and graded potentials...Ch. 37.3 - In multiple sclerosis (from the Greek skleros,...Ch. 37.3 - Prob. 3CC Ch. 37.3 - WHAT IF? Suppose a mutation caused gated sodium...

What happens when a resting neuron's membrane depolarizes? A. There is a net diffusion of Na + out of the cell. B. The equilibrium potential for K + ( E K ) becomes more positive. C. The neuron’s membrane voltage becomes more positive. D. The cell’s inside is more negative than the outside.

Concept explainers

Videos

Answer to Problem 1TYU

Explanation of Solution

Want to see more full solutions like this?

Chapter 37 Solutions

Additional Science Textbook Solutions