Q. No.Match the following columns and select the correct option
Column I
Column II
(a)
The organ of Corti
(i)
Connects the middle ear and pharynx
(b)
Cochlea
(ii)
Coiled part of the labyrinth
(c)
Eustachian tube
(iii)
Attached to the oval window
(d)
Stapes
(iv)
Located on the basilar membrane
Options:
(a)
(b)
(c)
(d)
1.
(iii)
(i)
(iv)
(ii)
2.
(iv)
(ii)
(i)
(iii)
3.
(i)
(ii)
(iv)
(iii)
4.
(ii)
(iii)
(i)
(iv)
Match the following columns and select the correct option :
| Column I | Column II | ||
| (a) | Rods and cones | (i) | Absence of Cones photoreceptor cells |
| (b) | Blind Spot | (ii) | Cones are densely packed |
| (c) | Fovea | (iii) | Photoreceptor cells |
| (d) | Iris | (iv) | Visible coloured portion of the eye |
| (a) | (b) | (c) | (d) | |
| 1. | (iii) | (i) | (ii) | (iv) |
| 2. | (ii) | (iii) | (i) | (iv) |
| 3. | (iii) | (iv) | (ii) | (i) |
| 4. | (ii) | (iv) | (iii) | (i) |
Consider the two statements:
I. Electrical synapses are rare in our system.
II. Electrical synapses conduct impulse faster than the chemical synapse.
1. Both I and II are correct and II explains I
2. Both I and II are correct but II does not explain I
3. Only I is correct
4. Both I and II are incorrect
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Match the parts of the human brain in Column I with function in Column II and select the answer from the codes given:
| COLUMN I | COLUMN II | ||
| A. | Medulla oblongata | a. | Coordinating center for sensory and motor signaling |
| B. | Thalamus | b. | Regulation of gastric secretions |
| C. | Hypothalamus | c. | Thermoregulation and osmoregulation |
| D. | Hippocampus | d. | Consolidation of short term memory into long term memory |
Codes
| A | B | C | D | |
| 1. | a | b | c | d |
| 2. | b | a | d | c |
| 3. | a | b | d | c |
| 4. | b | a | c | d |
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The resting axonal membrane is impermeable/nearly impermeable to:
I. Sodium ions
II. Potassium ions
III. Negatively charged proteins
| 1. | Only I and II | 2. | Only I and III |
| 3. | Only II and III | 4. | I, II and III |
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The major refractive surface in the human eye is the:
1. Anterior surface of cornea
2. Posterior surface of cornea
3. Anterior surface of lens
4. Posterior surface of lens
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Most of the neurons in the cerebral cortex are:
| 1. | Unipolar | 2. | Bipolar |
| 3. | Multipolar | 4. | Pseudounipolar |
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A gymnast is able to balance his body upside down even in total darkness because of
1. Cochlea
2. Vestibular apparatus
3. Tectorial membrane
4. Organ of corti
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Select the answer with correct matching of the structure, its location and function.
|
Structure |
Location |
Function |
|
|
1. |
Cerebellum |
Midbrain |
Controls respiration and gastric secretions |
|
2. |
Hypothalamus |
Forebrain |
Controls body temperature, urge for eating and drinking |
|
3. |
Blind spot |
Near the place where optic nerve leaves the eye |
Rods and cones are present but inactive here |
|
4. |
Eustachian tube |
Anterior part of internal ear |
Equalizes air pressure on either side of tympanic membrane |
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During the propagation of a nerve impulse, the action potential results from the movement of
1. Na+ ions from extracellular fluid to intracellular fluid.
2. K+ ions from extracellular fluid to intracellular fluid.
3. Na+ ions from intracellular fluid to extracellular fluid.
4. K+ ions from intracellular fluid to extracellular fluid.
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