Biology - Neural Control and Coordination Question with Solution | TestHub
BiologyNeural Control and CoordinationNerve ImpulseMedium2 minPYQ_2026
BiologyMediumsingle choice
Match the property of nerve fibre in column I with the explanation in column II
| Column I (Property of nerve fiber) | Column II (Explanation) |
|---|---|
| A. Irritability | I. Time interval during which a nerve fails to respond to a second stimulus. |
| B. Refractory period | II. Ability to perceive stimulus and enter into a state of activity. |
| C. Conductivity | III. Many subliminal stimuli are given in quick succession to produce an impulse by addition. |
| D. Summation effect | IV. Ability to transmit the excitation. |
Options:
Answer:
C
Solution:
Irritability is the ability of a nerve fibre to perceive a stimulus and enter into a state of activity.
Refractory period is the time interval during which a nerve fails to respond to a second stimulus, regardless of its strength.
Conductivity is the ability of a nerve fibre to transmit the excitation or action potential along its length.
Summation effect occurs when many subliminal (sub-threshold) stimuli are given in quick succession, and their effects are added up to produce an action potential.
Therefore, the correct matching is A-II, B-I, C-IV, D-III.
Answer: A-II, B-I, C-IV, D-III
Stream:MHT_CET_MEDICALSubject:BiologyTopic:Neural Control and CoordinationSubtopic:Nerve Impulse
⏱ 2mℹ️ Source: PYQ_2026
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