Depolarization is the state in which the sodium ion channels are opened to make the membrane potential positive. During depolarization, the action potential is stimulated. When the depolarization reaches the threshold potential, the signals are transmitted.

Question

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Answer 1

Question

Chapter 7, Problem 1E

Summary Introduction

Introduction:

Depolarization is the state in which the sodium ion channels are opened to make the membrane potential positive. During depolarization, the action potential is stimulated. When the depolarization reaches the threshold potential, the signals are transmitted.

Expert Solution & Answer

Answer to Problem 1E

Solution:

The correct answer is option (e) all of the above.

Explanation of Solution

Explanation/justification for the correct answer:

Option (a) is opening of sodium channels. During depolarization, the sodium channels are opened so that the sodium ions can rush inside the cell and make the membrane potential positive. When the membrane potential reaches the threshold potential then the action potential is initiated.
Option (b) has delayed the closing of sodium ion channels. During depolarization, the sodium ions need to rush inside the cell to make the membrane potential positive. If the sodium ion channels are closed early, then the membrane potential will not reach the threshold potential and the action potential will not initiate. So, it is necessary to delay the closing of sodium ion channels.
Option (c) has delayed the opening of potassium channels. If potassium ion channels are open, then the potassium ions will move out of the cell making the membrane potential negative. This will make the cell polarized instead of depolarized. So, this option is correct.
Option (d) is both a and c are correct. From the above options, a and c are correct. So, this option is correct.
Option (e) is all the above are correct. All the above options are correct in the given question. So, this is the final correct answer.

Conclusion

The correct option is (e) all the above are correct.

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Answer 2

Question

Chapter 7, Problem 1E

Summary Introduction

Introduction:

Depolarization is the state in which the sodium ion channels are opened to make the membrane potential positive. During depolarization, the action potential is stimulated. When the depolarization reaches the threshold potential, the signals are transmitted.

Expert Solution & Answer

Answer to Problem 1E

Solution:

The correct answer is option (e) all of the above.

Explanation of Solution

Explanation/justification for the correct answer:

Option (a) is opening of sodium channels. During depolarization, the sodium channels are opened so that the sodium ions can rush inside the cell and make the membrane potential positive. When the membrane potential reaches the threshold potential then the action potential is initiated.
Option (b) has delayed the closing of sodium ion channels. During depolarization, the sodium ions need to rush inside the cell to make the membrane potential positive. If the sodium ion channels are closed early, then the membrane potential will not reach the threshold potential and the action potential will not initiate. So, it is necessary to delay the closing of sodium ion channels.
Option (c) has delayed the opening of potassium channels. If potassium ion channels are open, then the potassium ions will move out of the cell making the membrane potential negative. This will make the cell polarized instead of depolarized. So, this option is correct.
Option (d) is both a and c are correct. From the above options, a and c are correct. So, this option is correct.
Option (e) is all the above are correct. All the above options are correct in the given question. So, this is the final correct answer.

Conclusion

The correct option is (e) all the above are correct.

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Answer 3

Question

Chapter 7, Problem 1E

Summary Introduction

Introduction:

Depolarization is the state in which the sodium ion channels are opened to make the membrane potential positive. During depolarization, the action potential is stimulated. When the depolarization reaches the threshold potential, the signals are transmitted.

Expert Solution & Answer

Answer to Problem 1E

Solution:

The correct answer is option (e) all of the above.

Explanation of Solution

Explanation/justification for the correct answer:

Option (a) is opening of sodium channels. During depolarization, the sodium channels are opened so that the sodium ions can rush inside the cell and make the membrane potential positive. When the membrane potential reaches the threshold potential then the action potential is initiated.
Option (b) has delayed the closing of sodium ion channels. During depolarization, the sodium ions need to rush inside the cell to make the membrane potential positive. If the sodium ion channels are closed early, then the membrane potential will not reach the threshold potential and the action potential will not initiate. So, it is necessary to delay the closing of sodium ion channels.
Option (c) has delayed the opening of potassium channels. If potassium ion channels are open, then the potassium ions will move out of the cell making the membrane potential negative. This will make the cell polarized instead of depolarized. So, this option is correct.
Option (d) is both a and c are correct. From the above options, a and c are correct. So, this option is correct.
Option (e) is all the above are correct. All the above options are correct in the given question. So, this is the final correct answer.

Conclusion

The correct option is (e) all the above are correct.

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Answer 4

Question

Chapter 7, Problem 1E

Summary Introduction

Introduction:

Depolarization is the state in which the sodium ion channels are opened to make the membrane potential positive. During depolarization, the action potential is stimulated. When the depolarization reaches the threshold potential, the signals are transmitted.

Expert Solution & Answer

Answer to Problem 1E

Solution:

The correct answer is option (e) all of the above.

Explanation of Solution

Explanation/justification for the correct answer:

Option (a) is opening of sodium channels. During depolarization, the sodium channels are opened so that the sodium ions can rush inside the cell and make the membrane potential positive. When the membrane potential reaches the threshold potential then the action potential is initiated.
Option (b) has delayed the closing of sodium ion channels. During depolarization, the sodium ions need to rush inside the cell to make the membrane potential positive. If the sodium ion channels are closed early, then the membrane potential will not reach the threshold potential and the action potential will not initiate. So, it is necessary to delay the closing of sodium ion channels.
Option (c) has delayed the opening of potassium channels. If potassium ion channels are open, then the potassium ions will move out of the cell making the membrane potential negative. This will make the cell polarized instead of depolarized. So, this option is correct.
Option (d) is both a and c are correct. From the above options, a and c are correct. So, this option is correct.
Option (e) is all the above are correct. All the above options are correct in the given question. So, this is the final correct answer.

Conclusion

The correct option is (e) all the above are correct.

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Answer 5

Chapter 7, Problem 1E

Summary Introduction

Introduction:

Depolarization is the state in which the sodium ion channels are opened to make the membrane potential positive. During depolarization, the action potential is stimulated. When the depolarization reaches the threshold potential, the signals are transmitted.

Expert Solution & Answer

Answer to Problem 1E

Solution:

The correct answer is option (e) all of the above.

Explanation of Solution

Explanation/justification for the correct answer:

Option (a) is opening of sodium channels. During depolarization, the sodium channels are opened so that the sodium ions can rush inside the cell and make the membrane potential positive. When the membrane potential reaches the threshold potential then the action potential is initiated.
Option (b) has delayed the closing of sodium ion channels. During depolarization, the sodium ions need to rush inside the cell to make the membrane potential positive. If the sodium ion channels are closed early, then the membrane potential will not reach the threshold potential and the action potential will not initiate. So, it is necessary to delay the closing of sodium ion channels.
Option (c) has delayed the opening of potassium channels. If potassium ion channels are open, then the potassium ions will move out of the cell making the membrane potential negative. This will make the cell polarized instead of depolarized. So, this option is correct.
Option (d) is both a and c are correct. From the above options, a and c are correct. So, this option is correct.
Option (e) is all the above are correct. All the above options are correct in the given question. So, this is the final correct answer.

Conclusion

The correct option is (e) all the above are correct.

Answer 6

Chapter 7, Problem 1E

Summary Introduction

Introduction:

Depolarization is the state in which the sodium ion channels are opened to make the membrane potential positive. During depolarization, the action potential is stimulated. When the depolarization reaches the threshold potential, the signals are transmitted.

Expert Solution & Answer

Answer to Problem 1E

Solution:

The correct answer is option (e) all of the above.

Explanation of Solution

Explanation/justification for the correct answer:

Option (a) is opening of sodium channels. During depolarization, the sodium channels are opened so that the sodium ions can rush inside the cell and make the membrane potential positive. When the membrane potential reaches the threshold potential then the action potential is initiated.
Option (b) has delayed the closing of sodium ion channels. During depolarization, the sodium ions need to rush inside the cell to make the membrane potential positive. If the sodium ion channels are closed early, then the membrane potential will not reach the threshold potential and the action potential will not initiate. So, it is necessary to delay the closing of sodium ion channels.
Option (c) has delayed the opening of potassium channels. If potassium ion channels are open, then the potassium ions will move out of the cell making the membrane potential negative. This will make the cell polarized instead of depolarized. So, this option is correct.
Option (d) is both a and c are correct. From the above options, a and c are correct. So, this option is correct.
Option (e) is all the above are correct. All the above options are correct in the given question. So, this is the final correct answer.

Conclusion

The correct option is (e) all the above are correct.

Answer 7

Chapter 7, Problem 1E

Summary Introduction

Introduction:

Depolarization is the state in which the sodium ion channels are opened to make the membrane potential positive. During depolarization, the action potential is stimulated. When the depolarization reaches the threshold potential, the signals are transmitted.

Answer 8

Expert Solution & Answer

Answer to Problem 1E

Solution:

The correct answer is option (e) all of the above.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Explanation of Solution

Explanation/justification for the correct answer:

Option (a) is opening of sodium channels. During depolarization, the sodium channels are opened so that the sodium ions can rush inside the cell and make the membrane potential positive. When the membrane potential reaches the threshold potential then the action potential is initiated.
Option (b) has delayed the closing of sodium ion channels. During depolarization, the sodium ions need to rush inside the cell to make the membrane potential positive. If the sodium ion channels are closed early, then the membrane potential will not reach the threshold potential and the action potential will not initiate. So, it is necessary to delay the closing of sodium ion channels.
Option (c) has delayed the opening of potassium channels. If potassium ion channels are open, then the potassium ions will move out of the cell making the membrane potential negative. This will make the cell polarized instead of depolarized. So, this option is correct.
Option (d) is both a and c are correct. From the above options, a and c are correct. So, this option is correct.
Option (e) is all the above are correct. All the above options are correct in the given question. So, this is the final correct answer.

Answer 12

Conclusion

The correct option is (e) all the above are correct.

Answer 13

Ch. 7.2 - Name the different parts, divisions, and...Ch. 7.2 - Prob. 7.1.2QC Ch. 7.2 - Prob. 7.1.3QC Ch. 7.3 - Prob. 7.2.1QC Ch. 7.3 - Prob. 7.2.2QC Ch. 7.3 - If channels that permitted both sodium ions and...Ch. 7.4 - Prob. 1CTQ Ch. 7.4 - Prob. 2CTQ Ch. 7.4 - Prob. 3CTQ Ch. 7.4 - Prob. 7.3.1QC

Depolarization is the state in which the sodium ion channels are opened to make the membrane potential positive. During depolarization, the action potential is stimulated. When the depolarization reaches the threshold potential, the signals are transmitted.

Concept explainers

Videos

Introduction:

Depolarization is the state in which the sodium ion channels are opened to make the membrane potential positive. During depolarization, the action potential is stimulated. When the depolarization reaches the threshold potential, the signals are transmitted.

Answer to Problem 1E

Explanation of Solution

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Chapter 7 Solutions

Depolarization is the state in which the sodium ion channels are opened to make the membrane potential positive. During depolarization, the action potential is stimulated. When the depolarization reaches the threshold potential, the signals are transmitted.

Concept explainers

Videos

Introduction: Depolarization is the state in which the sodium ion channels are opened to make the membrane potential positive. During depolarization, the action potential is stimulated. When the depolarization reaches the threshold potential, the signals are transmitted.

Answer to Problem 1E

Explanation of Solution

Want to see more full solutions like this?

Chapter 7 Solutions

Introduction:

Depolarization is the state in which the sodium ion channels are opened to make the membrane potential positive. During depolarization, the action potential is stimulated. When the depolarization reaches the threshold potential, the signals are transmitted.