What restores the resting membrane potential of the axonal membrane at the site of excitation?
1. Influx of sodium ions
2. Efflux of sodium ions
3. Influx of potassium ions
4. Efflux of potassium ions
Subtopic: Â Origin of Resting Membrane Potential |Â Action Potential |
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The axonal membrane:
| 1. | is relatively more permeable to potassium ions than to sodium ions during its resting stage |
| 2. | is relatively more permeable to sodium ions than to potassium ions during its resting stage |
| 3. | is equally permeable to potassium ions and to sodium ions during its resting stage |
| 4. | is impermeable to potassium ions and to sodium ions during its resting stage |
Subtopic: Â Origin of Resting Membrane Potential |Â Action Potential |
 87%
From NCERT
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In the human ear:
| 1. | Tectorial membrane separates the scala vestibuli and scala media |
| 2. | Reissner’s membrane separates the scala media and the scala tympani |
| 3. | Basilar membrane lies over the hair cells of the organ of Corti |
| 4. | Tympanic membrane separates the external ear and the middle ear |
 61%
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Dysfunction of which of the following parts of the human brain is most likely to affect learning and memory?
1. Pons
2. Hippocampus
3. Cerebellum
4. Hypothalamus
1. Pons
2. Hippocampus
3. Cerebellum
4. Hypothalamus
Subtopic: Â Diencephalon |
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From NCERT
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Cones in human eye:
1. are of three types and function in photopic and colour vision
2. are of three types and function in scotopic vision
3. are of two types and function in photopic and colour vision
4. are of two types and function in scotopic vision
1. are of three types and function in photopic and colour vision
2. are of three types and function in scotopic vision
3. are of two types and function in photopic and colour vision
4. are of two types and function in scotopic vision
 75%
From NCERT
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Which of the following statements is/are true?
| I: | The resting axonal membrane is relatively more permeable to potassium ions and nearly impermeable to sodium ions. |
| II: | Sodium potassium pump transports 3 Na+ outwards for 2 K+ into the cell. |
| 1. | Only I |
| 2. | Only II |
| 3. | Both I and II |
| 4. | Neither I nor II |
Subtopic: Â Origin of Resting Membrane Potential |Â Action Potential |
 84%
From NCERT
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Select the incorrect statement regarding synapses:
| 1. | Impulse Transmission across a chemical synapse is always faster than that across an electrical synapse. |
| 2. | The membranes of presynaptic and postsynaptic neurons are in close proximity in an electrical synapse. |
| 3. | Electrical current can flow directly from one neuron into the other across the electrical synapse. |
| 4. | Chemical synapses use neurotransmitters. |
Subtopic: Â Origin of Resting Membrane Potential |Â Synapse |
 89%
From NCERT
NEET - 2022
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Ear wax secreting cells have which type of epithelium?
1. Columnar epithelium
2. Exocrine glandular epithelium
3. Compound epithelium
4. Endocrine glandular epithelium
 70%
From NCERT
NEET - 2022
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Match List - I with List - II regarding sensory organs in human.
| List - I | List - II |
| (a) Organ of corti | (i) Photo receptors |
| (b) Nasal mucosa | (ii) Gustatory receptors |
| (c) Taste buds | (iii) Auditory receptors |
| (d) Retina | (iv) Olfactory receptors |
Choose the correct answer from the option given below
| (a) | (b) | (c) | (d) | |
| 1. | (ii) | (iv) | (iii) | (i) |
| 2. | (iii) | (iv) | (ii) | (i) |
| 3. | (iv) | (iii) | (i) | (ii) |
| 4. | (iii) | (i) | (ii) | (iv) |
 89%
From NCERT
NEET - 2022
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Much of the sensory Motor, and associative neural activity of the cerebrum occurs on the surface, a layer called the
1. Corpus Callosum
2. Cerebral Cortex
3. Limbic System
4. Basal Ganglia
1. Corpus Callosum
2. Cerebral Cortex
3. Limbic System
4. Basal Ganglia
Subtopic: Â Cerebrum, EEG & Sleep |
 82%
From NCERT
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