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A: Presence of myelin sheath increases the rate of conduction of nerve impulse.
R: Ionic channels are absent in the area covered by myelin sheath therefore, depolarization occurs only at the nodes of Ranvier, resulting in saltatory or jumping conduction.
  • a)
    If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark.
  • b)
    If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark
  • c)
    If Assertion is a true statement but Reason is false, then mark.
  • d)
    If both Assertion and Reason are false statements, then mark.
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
A: Presence of myelin sheath increases the rate of conduction of nerve...
Presence of myelin sheath causes fast conduction ionic channels are less in between nodes of Ranvier and concentrated more in nodes of Ranvier.
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Most Upvoted Answer
A: Presence of myelin sheath increases the rate of conduction of nerve...
And Reason are correct and Reason is the correct explanation for Assertion.

Explanation: The presence of myelin sheath does increase the rate of conduction of nerve impulses because it insulates the axon and prevents the leakage of ions, which allows for faster transmission of the electrical signal. The myelin sheath also forces the nerve impulse to "jump" from one node of Ranvier to the next, which is known as saltatory conduction. This is due to the fact that ionic channels are absent in the area covered by myelin sheath, resulting in depolarization occurring only at the nodes of Ranvier. Therefore, both Assertion and Reason are correct, and Reason is the correct explanation for Assertion.
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A: Presence of myelin sheath increases the rate of conduction of nerve impulse.R: Ionic channels are absent in the area covered by myelin sheath therefore, depolarization occurs only at the nodes of Ranvier, resulting in saltatory or jumping conduction.a)If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark.b)If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then markc)If Assertion is a true statement but Reason is false, then mark.d)If both Assertion and Reason are false statements, then mark.Correct answer is option 'C'. Can you explain this answer?
Question Description
A: Presence of myelin sheath increases the rate of conduction of nerve impulse.R: Ionic channels are absent in the area covered by myelin sheath therefore, depolarization occurs only at the nodes of Ranvier, resulting in saltatory or jumping conduction.a)If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark.b)If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then markc)If Assertion is a true statement but Reason is false, then mark.d)If both Assertion and Reason are false statements, then mark.Correct answer is option 'C'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about A: Presence of myelin sheath increases the rate of conduction of nerve impulse.R: Ionic channels are absent in the area covered by myelin sheath therefore, depolarization occurs only at the nodes of Ranvier, resulting in saltatory or jumping conduction.a)If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark.b)If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then markc)If Assertion is a true statement but Reason is false, then mark.d)If both Assertion and Reason are false statements, then mark.Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A: Presence of myelin sheath increases the rate of conduction of nerve impulse.R: Ionic channels are absent in the area covered by myelin sheath therefore, depolarization occurs only at the nodes of Ranvier, resulting in saltatory or jumping conduction.a)If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark.b)If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then markc)If Assertion is a true statement but Reason is false, then mark.d)If both Assertion and Reason are false statements, then mark.Correct answer is option 'C'. Can you explain this answer?.
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