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.

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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.

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Students have asked these similar questions

The presence of an electrical gradient is responsible for both the resting membrane potential and the action potential in the neuron.a. In this case who is responsible for maintaining the electric gradient to produce a potential for the resting membrane?b. Explain what is meant by an electrical gradient in the context of a cell (neuron)!

Which best defines depolarization? A. At first polarity is reversed the continues until the potential difference across the membrane is eliminated. B.None C.It reestablishes the resting potential. D. At first eliminates the potential difference across the membrane then continues until the polarity is actually reversed.

Which one of these is an example of an excitatory postynaptic potential in a typical neuron? a) A voltage change from -70mV to -70.5mV b) A voltage change from +35mV to 0MV c) A voltage change from 0mV to +0.35mV d) A voltage change from -69.5mV to -70mV

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.

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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.

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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.

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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.

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