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Q. No.Given below are two statements:
I:
The nose contains mucus-coated receptors which are specialised for receiving the sense of smell are called olfactory receptors.
II:
Wall of the eyeball has three layers. The external layer is called choroid (dense connective tissue), middle layer is sclera (thin pigmented layer) and internal layer is retina (ganglion cells, bipolar cells and photoreceptor cells)
In the light of the above statements, choose the correct answer from the options given below:
1. Statement I is True but Statement II is False
2. Statement I is False but Statement II is True
3. Both Statement I and Statement II are True
4. Both Statement I and Statement II are False
Subtopic: Human Eye (OLD NCERT) | Smell & Taste (OLD NCERT) | Basic Anatomy of Human Eye (OLD NCERT) |
50%
From NCERT
NEET - 2023
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Brain stem of the human brain consists of:
1. Mid-brain, Pons and Medulla Oblongata
2. Forebrain, Cerebellum and Pons
3. Thalamus, Hypothalamus and Corpora quadrigemina
4. Amygdala, Hippocampus and Corpus Callosum
1. Mid-brain, Pons and Medulla Oblongata
2. Forebrain, Cerebellum and Pons
3. Thalamus, Hypothalamus and Corpora quadrigemina
4. Amygdala, Hippocampus and Corpus Callosum
Subtopic: Hind & Mid Brain |
90%
From NCERT
NEET - 2023
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Subtopic: Diencephalon |
93%
From NCERT
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Function of the hypothalamus is:
1. thermoregulation
2. water balance
3. control of hormone function
4. All of the above
1. thermoregulation
2. water balance
3. control of hormone function
4. All of the above
Subtopic: Diencephalon |
From NCERT
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Subtopic: Diencephalon |
96%
From NCERT
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The parts of the human brain that help in the regulation of sexual behavior, expression of excitement, pleasure, rage, fear, etc. are:
1. Corpus callosum and thalamus
2. Limbic system & hypothalamus
3. Corpora quadrigemina & hippocampus
4. Brain stem & epithalamus
1. Corpus callosum and thalamus
2. Limbic system & hypothalamus
3. Corpora quadrigemina & hippocampus
4. Brain stem & epithalamus
Subtopic: Diencephalon |
88%
From NCERT
NEET - 2023
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Match List I with List II with respect to human eye.
Choose the correct answer from the options given below:
| List I | List II | ||
| A. | Fovea | I | Visible coloured portion of eye that regulates diameter of pupil. |
| B. | Iris | II. | External layer of eye formed of dense connective tissue. |
| C. | Blind spot | III. | Point of greatest visual acuity or resolution. |
| D. | Sclera | IV. | Point where optic nerve leaves the eyeball and photoreceptor cells are absent. |
Choose the correct answer from the options given below:
| Options: | A | B | C | D |
| 1. | II | I | III | IV |
| 2. | III | I | IV | II |
| 3. | IV | III | II | I |
| 4. | I | IV | III | II |
Subtopic: Human Eye (OLD NCERT) | Basic Anatomy of Human Eye (OLD NCERT) |
79%
From NCERT
NEET - 2023
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Select the correct 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 synapses are easier to regulate than the chemical synapses. |
| 4. | Chemical synapses do not use neurotransmitters |
Subtopic: Synapse |
85%
From NCERT
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Given below is the chronological sequence of events in mechanisms of vision and hearing. The correct events are:
1. Only A
2. Only B
3. Both A and B
4. Neither A nor B
| A | Mechanism of vision | Light induces dissociation of the retinal from opsin → change in the structure of the opsin → membrane permeability changes → generation of action potentials in the ganglion cells through the bipolar cells → action potentials are transmitted by the optic nerves to the visual cortex. |
| B | Mechanism of hearing | Vibrations are transmitted through the ear ossicles to the round window → vibrations generate waves in the lymphs → this induces a ripple in the Reissner’s membrane → the hair cells press them against the basilar membrane → nerve impulses generated are transmitted to the auditory cortex. |
2. Only B
3. Both A and B
4. Neither A nor B
Subtopic: Huma Eye: Accommodation (OLD NCERT) | Human Eye: Adaptation (OLD NCERT) | Inner Ear: Cochlea (OLD NCERT) | Basic Anatomy of Human Eye (OLD NCERT) |
61%
From NCERT
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Identify the correctly matched pairs:
| Part of human brain | Function | |
| I | Corpus callosum | Tract of nerve fibres connecting two cerebellar hemispheres |
| II | Thalamus | Major coordinating centre for sensory and motor signaling |
| III | Hypothalamus | Control of body temperature, urge for eating and drinking |
| IV | Limbic system | Equilibrium |
| V | Medulla | Pneumotaxic centre for regulation of breathing |
2. II and III only
3. I, III and V only
4. I, II, III and IV only
Subtopic: Hind & Mid Brain | Diencephalon | Cerebrum, EEG & Sleep |
From NCERT
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