Assertion (A): Procenephalon becomes thalamus and hypothalamus
Reason (R): Mesencephalon becomes mid-brain
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.
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Subtopic: Nervous System |
81%
Other Reason
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Assertion (A): The reflex pathway comprises atleast one afferent neuron (receptor) and one efferent (effector or excitor) neuron.
Reason (R): The afferent neuron transmits impulse to CNS.
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.
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Subtopic: Motor Functions of Spinal Cord |
77%
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Assertion (A): The peripheral nervous system is composed of all the nerves of the body associated with central nervous system.
Reason (R): Central nervous system is the site of information processing and control.
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.
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Subtopic: Nervous System |
78%
From NCERT
Other Reason
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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.
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Subtopic: Nervous System | Origin of Resting Membrane Potential | Action Potential | Synapse |
85%
From NCERT
Other Reason
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Assertion (A): Fovea is the point where visual acuity (resolution) is maximum.
Reason (R): Fovea is a thinned-out portion of sclera.
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.
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69%
From NCERT
Other Reason
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Assertion (A): The choroid layer is thin over the posterior one-third of eye ball and is thick in the rest two-third part.
Reason (R): Choroid is the outermost layer of eye ball.
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.
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64%
From NCERT
Other Reason
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Assertion (A): The sensory neuron from toes to CNS is one of the longest nerve in our body.
Reason (R): Sensory nerve from synapse at both dendrites and axon terminal.
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.
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Subtopic: Nervous System |
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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.
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Subtopic: Origin of Resting Membrane Potential | Action Potential |
52%
From NCERT
Other Reason
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Assertion (A): Corpus callosum connects the two cerebral hemispheres
Reason (R): Association area are responsible for complex functions like intersensory association, memory and communication
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.
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Subtopic: Neuroanatomy |
91%
From NCERT
Other Reason
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Assertion (A): No image formation occurs at retina where the optic nerves leaves the eye.
Reason (R): Photoreceptors cells are not present in this region
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.
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84%
From NCERT
Other Reason
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