Q. No.Which of the following regions of the brain is incorrectly paired with its function?
1.
Medulla oblongata-Homeostatic control
2.
Cerebellum-Language comprehension
3.
Corpus callosum-Communication between
the left and right cerebral cortices
4.
Cerebrum-Calculation and contemplation
the left and right cerebral cortices
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. the organ of Corti
Injury localized to the hypothalamus would most likely disrupt:
1. short-term memory
2. co-ordination during locomotion
3. executive functions, such as decision making
4. regulation of body temperature
Which one of the following statements is not correct?
| 1. | Retinal is the light-absorbing portion of visual photo pigments |
| 2. | In retina, the rods have the photopigments rhodopsin while cones have three different photopigments. |
| 3. | Retinal is a derivative of Vitamin C |
| 4. | Rhodopsin is the purplish protein present in rods only. |
Parts A, B, C and D of the human eye are shown in the diagram. Select the option which gives correct identification along with its functions/characteristics:
| 1. | B-blind spot has only a few rods and cones |
| 2. | C-aqueous chamber reflects the light which does not pass through the lens |
| 3. | D-choroid- its anterior part forms the ciliary body |
| 4. | A-retina - contains photoreceptors rods and cones |
A diagram showing the axon terminal and synapse is given. Identify correctly at least two of A-D:
1. B- Synaptic connection; D- K+
2. A- Neurotransmitter; B- Synaptic cleft
3. C- Neurotransmitter; D- Ca++
4. A- Receptor; C- Synaptic vesicles
The human hindbrain comprises three parts, one of which is:
| 1. | Cerebellum | 2. | Hypothalamus |
| 3. | Spinal | 4. | Corpus callosum |
Which part of the human ear plays no role in hearing as such but is otherwise very much required?
1. Eustachian tube
2. Organ of Corti
3. Vestibular apparatus
4. Ear ossicles
1. vitamin-C
2. vitamin-D
3. vitamin-A
4. vitamin-B
| 1. | equally permeable to both Na+ and K+ ions |
| 2. | impermeable to both Na+ and K+ ions |
| 3. | comparatively more permeable to K+ ions and nearly impermeable to Na+ ions |
| 4. | comparatively more permeable to Na+ ions and nearly impermeable to K+ ions |
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