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Q. No.Which of the following structures is incorrectly paired with its function?
1. pons-conducts information between spinal cord and brain
2. cerebellum-contains the tracts that cross motor neurons from one side of the brain to the other side of the body.
3. thalamus-screens and relays incoming impulses to the cerebrum
4. corpus callosum-hand of fibers connecting left and right hemispheres
Subtopic: Cerebrum, EEG & Sleep |
59%
From NCERT
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Which of the following is not true of resting potential of a typical neuron?
1. The inside of the cell is more negative than is the outside
2. There are concentration gradients with more sodium outside the cell and a higher potassium concentration inside the cell
3. It is about 70 mV and can be measured by using microelectrodes placed inside and outside the cell.
4. It is formed by the sequential opening of voltage-gated channels.
1. The inside of the cell is more negative than is the outside
2. There are concentration gradients with more sodium outside the cell and a higher potassium concentration inside the cell
3. It is about 70 mV and can be measured by using microelectrodes placed inside and outside the cell.
4. It is formed by the sequential opening of voltage-gated channels.
Subtopic: Action Potential |
54%
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Rotation of the head of a vertebrate is sensed by
1. the organ of Corti located in the utricle and saccule.
2. changes in the action potentials of hair cells in response to the pull on them by calcium carbonate particles.
3. bending of hair cells in the ampulla of a semicircular canal in response to the inertia of the endolymph.
4. hair cells in response to movement of fluid in the coiled cochlea
1. the organ of Corti located in the utricle and saccule.
2. changes in the action potentials of hair cells in response to the pull on them by calcium carbonate particles.
3. bending of hair cells in the ampulla of a semicircular canal in response to the inertia of the endolymph.
4. hair cells in response to movement of fluid in the coiled cochlea
Subtopic: Inner Ear: Vestibular Apparatus (OLD NCERT) |
57%
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When the first walk from a brightly lit area into darkness, which of the following occur?
1. The pohtopsin of cones become bleached
2. Rod cells become hyperpolarized
3. Lateral inhibition caused by horizontal cells ceases.
4. Rhodopsin is still dissociated into retinal and opsin, and rods, are temporarily non-functional
1. The pohtopsin of cones become bleached
2. Rod cells become hyperpolarized
3. Lateral inhibition caused by horizontal cells ceases.
4. Rhodopsin is still dissociated into retinal and opsin, and rods, are temporarily non-functional
Subtopic: Huma Eye: Accommodation (OLD NCERT) |
57%
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Assertion (A): In depolarization process, there is a psotive charge on the outer side of a nerve fibre and a negative charge on its inner side
Reason (R): During depolarization, permeability of plasma membrane increases for sodium ions so Na+ move to outer side of the membrane and K+ enter into the nerve fibre through it
1. Both A & R are true and the R is the correct explanation of the A.
2. Both A & R are true but the R is not the correct explanation of the A.
3. A is true statement but R is false.
4. Both A and R are false statements.
Reason (R): During depolarization, permeability of plasma membrane increases for sodium ions so Na+ move to outer side of the membrane and K+ enter into the nerve fibre through it
1. Both A & R are true and the R is the correct explanation of the A.
2. Both A & R are true but the R is not the correct explanation of the A.
3. A is true statement but R is false.
4. Both A and R are false statements.
- If both the assertion and the reason are true and the reason is a correct explanation of the assertion
- If both the assertion and reason are true but the reason is not a correct explanation of the assertion
- If the assertion is true but the reason is false
- If both the assertion and reason are false
Subtopic: Action Potential |
71%
From NCERT
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The pre-excitation potential difference between the outside and inside of a neuron is called:
1. Reaction potential
2. Resting potential
3. Spike potential
4. Action potential
1. Reaction potential
2. Resting potential
3. Spike potential
4. Action potential
Subtopic: Origin of Resting Membrane Potential |
80%
From NCERT
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Reflex action has all of the following features, except:
| 1. | Receiving of signal from a sensory organ |
| 2. | Transmission of impulsive into the central nervous system through effector organ |
| 3. | Carrying of signal from the central nervous system to the effector |
| 4. | Response to an involuntary peripheral nervous stimulation |
Subtopic: Nervous System |
From NCERT
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Match List-I with List-II
Choose the correct answer from the options given below:
| List-I | List-II | ||
| (a) | Multipolar neuron | (i) | Somatic neural system |
| (b) | Bipolar neuron | (ii) | Cerebral cortex |
| (c) | Myelinated nerve fibre | (iii) | Retina of Eye |
| (d) | Unmyelinated nerve fibre | (iv) | Spinal nerves |
Choose the correct answer from the options given below:
| (a) | (b) | (c) | (d) | |
| 1. | (iii) | (i) | (iv) | (ii) |
| 2. | (ii) | (iv) | (iii) | (i) |
| 3. | (ii) | (iii) | (i) | (iv) |
| 4. | (ii) | (iii) | (iv) | (i) |
Subtopic: Neuroanatomy |
69%
From NCERT
NEET - 2022
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Match each item in Column I with one in Column II and select the correct match from the codes given:
Codes:
| Column I | Column II |
| A. Peripheral neural system | P. Comprises of all nerves associated with brain and spinal cord |
| B. Somatic neural system | Q. Relays impulses from CNS to skeletal muscles |
| C. Visceral neural system | R. Transmits impulse from CNS to involuntary organs and smooth muscles |
| D. Autonomic neural system | S. Part of PNS where impulses travel from CNS to the viscera and from the viscera to the CNS |
| A | B | C | D | |
| 1. | P | Q | R | S |
| 2. | Q | R | S | P |
| 3. | R | S | P | Q |
| 4. | S | P | Q | R |
Subtopic: Nervous System | Autonomic Nervous System (OLD NCERT) |
68%
From NCERT
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Sympathetic and parasympathetic neural systems are divisions of:
| 1. CNS | 2. Somatic neural system |
| 3. Autonomic neural system | 4. Visceral neural system |
Subtopic: Autonomic Nervous System (OLD NCERT) |
89%
From NCERT
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