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Q. No.When an adequate strength of the stimulus is applied to a resting axonal membrane, which of the following will lead to depolarization and the development of action potential?
1. Efflux of sodium ions
2. Influx of sodium ions
3. Influx of potassium ions
4. Efflux of potassium ions
Subtopic: Origin of Resting Membrane Potential | Action Potential |
81%
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Which neurotransmitter is released by the anterior motor neuron at the neuromuscular junction?
1. Adrenaline
2. Noradrenaline
3. Acetylcholine
4. Serotonin
1. Adrenaline
2. Noradrenaline
3. Acetylcholine
4. Serotonin
Subtopic: Synapse |
94%
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Consider the given two statements
| Assertion (A): | Myelinated neurons conduct impulse at a higher rate than the unmyelinated neurons. |
| Reason (R): | Myelinated neurons have saltatory conduction of impulse. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A). |
| 2. | Both (A) and (R) are True but (R) does not correctly explain (A). |
| 3. | (A) is True, (R) is False. |
| 4. | (A) is False, (R) is False. |
Subtopic: Nervous System |
89%
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Which of the following is not a function of the hypothalamus?
1. Regulating body temperature
2. Controlling appetite
3. Regulating the functions of anterior pituitary gland
4. Establishment of respiratory rhythm
1. Regulating body temperature
2. Controlling appetite
3. Regulating the functions of anterior pituitary gland
4. Establishment of respiratory rhythm
Subtopic: Fore Brain |
84%
From NCERT
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Which statement about the limbic system is correct?
| 1. | The limbic system is primarily involved in controlling voluntary movements. |
| 2. | It is primarily responsible for the regulation of vision and hearing. |
| 3. | The limbic system is involved in emotion, memory, and arousal. |
| 4. | It coordinates high cognitive functions like reasoning and language. |
Subtopic: Fore Brain |
87%
From NCERT
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Match Column I with Column II:
Codes:
| Column I | Column II | ||
| A | Sensory neurons | P | carry signals from the CNS to effectors (muscles or glands) |
| B | Motor neurons | Q | connect sensory and motor neurons |
| C | Interneurons | R | transmit signals from sensory receptors to the central nervous system |
| A | B | C | |
| 1. | P | Q | R |
| 2. | Q | P | R |
| 3. | R | P | Q |
| 4. | R | Q | P |
Subtopic: Nervous System |
56%
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Which part of the brain is responsible for maintaining posture and balance?
1. Cerebrum
2. Cerebellum
3. Medulla oblongata
4. Hypothalamus
1. Cerebrum
2. Cerebellum
3. Medulla oblongata
4. Hypothalamus
Subtopic: Hind & Mid Brain |
83%
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: Action Potential |
60%
From NCERT
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The depolarisation of the polarised axonal membrane is primarily due to:
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: Action Potential |
77%
From NCERT
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Which part of our brain is involved in thermoregulation and osmoregulation?
1. Corpora quadrigemina
2. Cerebellum
3. Hypothalamus
4. Pons varolii
1. Corpora quadrigemina
2. Cerebellum
3. Hypothalamus
4. Pons varolii
Subtopic: Fore Brain |
85%
From NCERT
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