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Q. No.
Assertion(A):
The resting axonal membrane is more permeable to potassium ions than sodium ions
Reason(R):
Potassium is the principal cation in the intracellular fluid.
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 and (R) is True.
Subtopic: Â Origin of Resting Membrane Potential |
From NCERT
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The sodium potassium pump transports:
1. three sodium ions from outside to inside a cell.
2. three sodium ions from inside to outside a cell.
3. two potassium ions from outside to inside a cell.
4. two sodium ions from outside to inside a cell.
1. three sodium ions from outside to inside a cell.
2. three sodium ions from inside to outside a cell.
3. two potassium ions from outside to inside a cell.
4. two sodium ions from outside to inside a cell.
Subtopic: Â Action Potential |
 61%
From NCERT
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What restores the resting potential of the membrane at the site of excitation?
| 1. | Diffusion of sodium to the inside of the cell. |
| 2. | Diffusion of sodium to the outside of the cell. |
| 3. | Diffusion of potassium to the outside of the cell. |
| 4. | Diffusion of potassium to the inside of the cell. |
Subtopic: Â Origin of Resting Membrane Potential |
 50%
From NCERT
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Consider the given two statements:
1. Statement I is correct; Statement II is correct
2. Statement I is correct; Statement II is incorrect
3. Statement I is incorrect; Statement II is correct
4. Statement I is incorrect; Statement II is incorrect
| Statement I: | Depolarisation of axonal membrane is due to influx of sodium ions. |
| Statement II: | Repolarisation of axonal membrane is due to efflux of sodium ions. |
2. Statement I is correct; Statement II is incorrect
3. Statement I is incorrect; Statement II is correct
4. Statement I is incorrect; Statement II is incorrect
Subtopic: Â Origin of Resting Membrane Potential |Â Action Potential |
 63%
From NCERT
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What restores the resting potential of the axonal membrane at the site of excitation after depolarisation?
1. Influx of sodium ions
2. Influx of potassium ions
3. Efflux of sodium ions
4. Efflux of potassium ions
1. Influx of sodium ions
2. Influx of potassium ions
3. Efflux of sodium ions
4. Efflux of potassium ions
Subtopic: Â Origin of Resting Membrane Potential |Â Action Potential |
 57%
From NCERT
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In the peripheral neural system, Schwann cells surround the axons of:
1. Only I
2. Only II
3. Both I and II
4. Neither I nor II
| I: | Myelinated nerve fibres |
| II: | Unmyelinated nerve fibres |
2. Only II
3. Both I and II
4. Neither I nor II
Subtopic: Â Nervous System |
 54%
From NCERT
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How many of the given statements are correct?
1. 0
2. 1
3. 2
4. 3
| I: | Hind brain and midbrain make up the brain stem. |
| II: | The hindbrain comprises pons, cerebellum and medulla. |
| III: | The forebrain consists of cerebrum, thalamus and hypothalamus. |
2. 1
3. 2
4. 3
Subtopic: Â Hind & Mid Brain |Â Fore Brain |
 54%
From NCERT
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Which of the following events is likely to happen if diffusion of ions is allowed in a resting polarized axonal membrane?
1. Na+ will move out of the cell
2. Na+ will move into the cell
3. K+ will move into the cell
4. Na+ and K+ will both move out of the cell
1. Na+ will move out of the cell
2. Na+ will move into the cell
3. K+ will move into the cell
4. Na+ and K+ will both move out of the cell
Subtopic: Â Action Potential |
 63%
From NCERT
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Match List I with List II:
Choose the correct answer from the options given below:
1. A-III, B-IV, C-II, D-I
2. A-I, B-III, C-II, D-IV
3. A-II, B-I, C-III, D-IV
4. A-II, B-III, C-I, D-IV
| List I | List II | ||
| A. | Pons | I. | Provides additional space for Neurons, regulates posture and balance |
| B. | Hypothalamus | II. | Controls respiration and gastric secretions |
| C. | Medulla | III. | Connects different regions of the brain |
| D. | Cerebellum | IV. | Neuro secretory cells |
Choose the correct answer from the options given below:
1. A-III, B-IV, C-II, D-I
2. A-I, B-III, C-II, D-IV
3. A-II, B-I, C-III, D-IV
4. A-II, B-III, C-I, D-IV
Subtopic: Â Nervous System |Â Hind & Mid Brain |Â Fore Brain |
From NCERT
NEET - 2024
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NEET 2026 - Target Batch - Vital
Cerebellum is mainly involved in:
1. consciousness
2. muscle coordination
3. homeostasis
4. sense reception
1. consciousness
2. muscle coordination
3. homeostasis
4. sense reception
Subtopic: Â Hind & Mid Brain |
From NCERT
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