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Q. No.Assertion (A): The cristae and maculae are the specific receptors of the vestibular apparatus.
Reason (R): Cristae and maculae maintain balance and body posture.
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: Inner Ear: Vestibular Apparatus (OLD NCERT) |
55%
From NCERT
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Assertion (A): The axonal membrane of the neuron during resting stage is more permeable to potassium ions (K+) and nearly impermeable to sodium ions (Na+)
Reason (R): In resting state neurons does not conduct any impulse, so these don’t require ATP to remain in a resting state
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): In resting state neurons does not conduct any impulse, so these don’t require ATP to remain in a resting state
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: Origin of Resting Membrane Potential | Action Potential |
From NCERT
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Assertion (A): When light strikes the retina, potential differences are generated in photoreceptors
Reason (R): Light induces dissociation of the retinal from opsin resulting in changes in the structure of the opsin which in turn causes membrane permeability changes.
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): Light induces dissociation of the retinal from opsin resulting in changes in the structure of the opsin which in turn causes membrane permeability changes.
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: Human Eye: Adaptation (OLD NCERT) |
75%
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The axoplasm inside the axon contains:
| 1. | low concentration of K+ |
| 2. | high concentration of negatively charged proteins |
| 3. | high concentration of Na+ |
| 4. | equal concentrations of Na+ and K+ |
Subtopic: Origin of Resting Membrane Potential | Action Potential |
87%
From NCERT
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How many of the given statements are correct?
1. 2
2. 3
3. 4
4. 5
| I: | The left and right cerebral hemispheres are connected by a tract of nerve fibres called corpus spongiosum. |
| II: | Association areas are neither clearly sensory nor motor in function. |
| III: | Thalamus is a major coordinating centre for sensory and motor signaling. |
| IV: | The hindbrain comprises pons, cerebellum and medulla. |
| V: | Three major regions make up the brain stem: mid brain, pons and medulla oblongata. |
2. 3
3. 4
4. 5
Subtopic: Hind & Mid Brain | Diencephalon | Cerebrum, EEG & Sleep |
72%
From NCERT
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The somatic neural system relays impulses from:
| 1. | the CNS to skeletal muscles |
| 2. | the CNS to the involuntary organs and smooth muscles of the body |
| 3. | the skeletal muscles of the CNS |
| 4. | the involuntary organs and smooth muscles of the body to the CNS |
Subtopic: Nervous System |
78%
From NCERT
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Consider the two statements regarding the human internal ear:
| Statement I: | The malleus is attached to the tympanic membrane and the stapes is attached to the oval window of the cochlea. |
| Statement II: | At the base of the cochlea, the scala vestibuli ends at the round window, while the scala tympani terminates at the oval window which opens to the middle ear. |
| 1. | Statement I is incorrect; Statement II is correct |
| 2. | Statement I is correct; Statement II is correct |
| 3. | Statement I is correct; Statement II is incorrect |
| 4. | Statement I is incorrect; Statement II is incorrect |
Subtopic: Outer & Middle Ear (OLD NCERT) | Inner Ear: Cochlea (OLD NCERT) |
56%
From NCERT
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Identify A, B and C in the given figure showing sectional view of cochlea:
| A | B | C | |
| 1. | Reissener’s membrane | Tectorial membrane | Basilar membrane |
| 2. | Basilar membrane | Reissener’s membrane | Tectorial membrane |
| 3. | Tectorial membrane | Basilar membrane | Reissener’s membrane |
| 4. | Reissener’s membrane | Basilar membrane | Tectorial membrane |
Subtopic: Inner Ear: Cochlea (OLD NCERT) |
80%
From NCERT
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What type of neuron is found in the human retina and olfactory membrane?
1. Unipolar
2. Bipolar
3. Multipolar
4. Pseudo-unipolar
1. Unipolar
2. Bipolar
3. Multipolar
4. Pseudo-unipolar
Subtopic: Nervous System |
94%
From NCERT
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Unmyelinated nerve fibre:
1. Only I
2. Only II
3. Both I and II
4. Neither I nor II
| I: | is enclosed by a Schwann cell that does not form a myelin sheath around the axon |
| II: | is commonly found in autonomous and the somatic neural systems |
2. Only II
3. Both I and II
4. Neither I nor II
Subtopic: Nervous System |
86%
From NCERT
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