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 |
 85%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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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 |
 90%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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The electrical potential difference across the resting axonal membrane is called as the:
1. Resting potential 2. Action potential
3. Threshold potential 4. Reversal potential
Subtopic:  Origin of Resting Membrane Potential | Action Potential |
 84%
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NEET 2023 - Target Batch - Aryan Raj Singh
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Consider the given statements:
I: When a stimulus is applied at a site on the polarised axonal membrane, the membrane at that site becomes freely permeable to sodium ions.
II: A rapid influx of sodium at this point leads to reversal of polarity and the membrane at the site is said to be depolarised.
III: The electric potential difference at the site is called the action potential which is in fact termed as nerve impulse.

1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
Subtopic:  Origin of Resting Membrane Potential | Action Potential |
 85%
From NCERT
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The human fore-brain does not contain:
1. Cerebrum 2. Thalamus
3. Hypothalamus 4. Cerebellum
Subtopic:  Hind & Mid Brain |
 94%
From NCERT
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Consider the given two statements:
I: The cerebral cortex, referred to as the grey matter, is thrown into prominent folds.
II: The cerebral white mater contains motor areas, and association area.
 
1. Both are correct 2. Both are incorrect
3. Only I is correct 4. Only II is correct
Subtopic:  Diencephalon |
 52%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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Consider the given two statements:
I: The association areas of the cerebral cortex are neither clearly sensory nor motor in function.
II: The association areas are responsible for complex functions like intersensory associations, memory and communication.
 
1. Both are correct 2. Both are incorrect
3. Only I is correct 4. Only II is correct
Subtopic:  Diencephalon |
 88%
From NCERT
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Identify the part of the human brain:
I:  where the thermostat of the human body is located
II. that has endocrine functions and synthesises neurohormones
III.  that has hunger centre
IV: that has osmoreceptors and plays important role in osmoregulation
1. Thalamus
2. Cerebrum
3. Hypothalamus
4. Mid brain
 
Subtopic:  Diencephalon |
 93%
From NCERT
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Consider the given two statements:
Statement I: The entire process of response to a peripheral nervous stimulation, that occurs involuntarily is called a reflex action.
Statement II: A reflex is made possible by neural pathways called reflex arcs which can act on an impulse before that impulse reaches the brain.
1. Both Statement I and Statement II are correct
2.  Both Statement I and Statement II are incorrect
3. Statement I is correct but Statement II is incorrect
4. Statement I is incorrect but Statement II is correct
 
Subtopic:  Nervous System |
 80%
From NCERT
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Consider the given statements regarding the middle layer of the wall of human eyeball:
I:  Choroid contains many blood vessels and looks bluish in colour.
II. It becomes thick in the anterior part to form the ciliary body.
III. The ciliary body itself continues forward to form the iris which is the visible cloured portion of the eye.
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
Subtopic:  Human Eye (OLD NCERT) | Basic Anatomy of Human Eye (OLD NCERT) |
 81%
From NCERT
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