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Q. No.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) |
67%
From NCERT
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Match each item in Column I with one in Column II and select the correct match from the codes given:
Code:
| Column I | Column II | ||
| A. | Multipolar neuron | P. | Embryonic stage |
| B. | Bipolar neuron | Q. | Retina |
| C. | Unipolar neuron | R. | Cerebral cortex |
| A | B | C | |
| 1. | P | Q | R |
| 2. | Q | R | P |
| 3. | R | Q | P |
| 4. | R | P | Q |
Subtopic: Nervous System |
92%
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Consider the given statements:
| I: | Myelinated nerve fibres are enveloped with Schwann cells, which form a myelin sheath around the axon. |
| II: | Unmyelinated nerve fibre is not enclosed by a Schwann cell or a myelin sheath. |
| III: | Myelinated nerve fibres are found in spinal and cranial nerves. |
| IV: | Unmyelinated nerve fibres are commonly found in autonomous and somatic neural systems. |
| 1. | Only II is incorrect | 2. | I and II are correct |
| 3. | III and IV are incorrect | 4. | All are correct |
Subtopic: Nervous System |
68%
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When the neuron is not conducting any impulse, i.e., resting, the axonal membrane:
| 1. | is comparatively more permeable to sodium ions and nearly impermeable to potassium ions. |
| 2. | is freely permeable to sodium ions and potassium ions. |
| 3. | is impermeable to sodium ions and potassium ions. |
| 4. | is comparatively more permeable to potassium ions and nearly impermeable to sodium ions. |
Subtopic: Origin of Resting Membrane Potential | Action Potential |
88%
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Each time the sodium-potassium pump functions, it actively transports:
| 1. | 3 sodium ions outwards and 2 potassium ions into the cell. |
| 2. | 3 sodium ions into the cells and 2 potassium outwards. |
| 3. | 2 sodium ions outwards and 3 potassium ions into the cell. |
| 4. | 2 sodium ions into the cells and 3 potassium ions outwards. |
Subtopic: Origin of Resting Membrane Potential | Action Potential |
86%
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In a resting axonal membrane:
| 1. | The outer surface possesses a positive charge while its inner surface becomes negatively charged. |
| 2. | The outer surface possesses a negative charge while its inner surface becomes positively charged. |
| 3. | Both the outer and the inner surface are positively charged. |
| 4. | Both the outer and the inner surface are negatively charged. |
Subtopic: Origin of Resting Membrane Potential | Action Potential |
91%
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The re-establishment of the resting membrane potential after depolarization is primarily due to:
| 1. Sodium potassium pump | 2. Influx of sodium |
| 3. Efflux of potassium | 4. Efflux of sodium |
Subtopic: Origin of Resting Membrane Potential | Action Potential |
61%
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Consider the two statements:
| I: | Electric synapses are rare in our system. |
| II: | Impulse transmission across electric synapse is always faster than across a chemical synapse. |
1. Both I and II are correct and II explains I
2. Both I and II are correct and II does not explain I
3. Only I is correct
4. Only II is correct
Subtopic: Origin of Resting Membrane Potential | Action Potential |
79%
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What causes the movement of the synaptic vesicles towards the membrane during transmission of impulse across a chemical synapse?
| 1. Sodium | 2. Calcium |
| 3. cAMP | 4. cGMP |
Subtopic: Synapse |
76%
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Myelin sheath around the axons in the PNS is secreted by:
| 1. oligodendrocytes | 2. axons |
| 3. Schwann cells | 4. ependymal |
Subtopic: Nervous System |
82%
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