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 nerve impulses always travel in one direction from dendrites to axon terminals. What prevents an action potential from travelling backward? a. Hyperpolarization of the neuron makes the membrane more positive and prevents another action potential. b. After repolarization, the refractory period occurs, where the sodium ions are found outside the cell. c. After repolarization, the reversal of ions prevents another action potential as there would not be enough sodium ions outside the cell to rush in. d. The refractory period prevents another action potential by lowering the threshold potential.

After the action potential reaches its peak, the potential across the membrane falls toward its resting level. What accounts for this recovery? a. The sodium–potassium pump removes the extra sodium. b. Potassium ions move out because their channels are open and the electrical gradient pushes them out. c. Potassium ions move out because their channels are open and the concentration gradient pushes them out. d. Potassium ions move in.

What membrane protein of the neuron is responsible for briefly increasing the Na+ permeability of the membrane during the rising phase of the nerve impulse? a. the sodium-potassium pump b. the voltage gated potassium channel c. the voltage gated sodium channel d. the stimulus gated sodium channel e. the ligand gated ion channel

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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