- 1(current)
Q. No.Which of the following processes take place during the establishment of a resting potential in the axon of a healthy human neuron?
(i) active transport
(ii) facilitated diffusion
(iii) respiration
1. (i), (ii) and (iii)
2. (ii) only
3. (i) and (iii) only
4. (i) and (ii) only
(i) active transport
(ii) facilitated diffusion
(iii) respiration
1. (i), (ii) and (iii)
2. (ii) only
3. (i) and (iii) only
4. (i) and (ii) only
Subtopic: Â Origin of Resting Membrane Potential |
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Which of the following processes involve ions?
(i) contraction of a muscle
(ii) transmission of a nerve impulse across a synapse
(iii) transfer of light energy into chemical energy in photosynthesis
(iv) oxidative phosphorylation in a mitochondrion
1. (ii) and (iii) only
2. (i) and (ii) only
3. (iii) and (iv) only
4. (i), (ii), (iii) and (iv)
(i) contraction of a muscle
(ii) transmission of a nerve impulse across a synapse
(iii) transfer of light energy into chemical energy in photosynthesis
(iv) oxidative phosphorylation in a mitochondrion
1. (ii) and (iii) only
2. (i) and (ii) only
3. (iii) and (iv) only
4. (i), (ii), (iii) and (iv)
Subtopic: Â Origin of Resting Membrane Potential |
 84%
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Assertion (A): The polarity of the membrane gets reversed when it becomes positively charged from the outer side.
Reason (R): Reversal of the polarity can make the membrane depolarised.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Reason (R): Reversal of the polarity can make the membrane depolarised.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Â Origin of Resting Membrane Potential |
 61%
From NCERT
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Assertion (A): Repolarisation of the axonal membrane results in the development of positive charge on the outer side and negative charge on the inner side
Reason (R): Nerve impulse is another name for action potential
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Reason (R): Nerve impulse is another name for action potential
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic: Â Origin of Resting Membrane Potential |Â Action Potential |
 84%
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Assertion (A): Electrical synapses are common in our nervous system.
Reason (R): Electrical synapses allow slower impulse transmission than chemical synapses.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Reason (R): Electrical synapses allow slower impulse transmission than chemical synapses.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic: Â Nervous System |Â Origin of Resting Membrane Potential |Â Action Potential |Â Synapse |
 84%
From NCERT
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Assertion (A): The imbalance in concentration of Na+, K+ and proteins generates resting potential.
Reason (R): To maintain the unequal distribution of Na+ and K+, the neurons use electrical energy.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Reason (R): To maintain the unequal distribution of Na+ and K+, the neurons use electrical energy.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic: Â Origin of Resting Membrane Potential |Â Action Potential |
From NCERT
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- 1(current)
Q. No.
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