Q. No.Injury localised to the hypothalamus would most likely disrupt
1. short term memory
2. coordination during locomotion
3. executive function, such as decision making
4. regulation of body temperature
1. short term memory
2. coordination during locomotion
3. executive function, such as decision making
4. regulation of body temperature
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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 photo pigment rhodopsin, while cones have three different photo pigments
3. Retinal is a derivative of vitamin-C
4. Rhodopsin is the purplish red protein present in rods only
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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
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A person entering an empty room suddenly finds a snake, right in front, on opening the door. Which one of the following is likely to happen in his neurohormonal control system?
1. Sympathetic nervous system is activated, releasing epinephrine and norepinephrine from adrenal medulla
2. Neurotransmitters diffuse rapidly across the cleft and transmit a nerve impulse
3. Hypothalamus activates the parasympathetic division of brain
4. Sympathetic nervous system is activated, releasing epinephrine and norepinephrine from adrenal cortex
The purplish red pigment rhodopsin contained in the rods type of photoreceptor cells of the human eyes is a derivative of
1. vitamin-C
2. vitamin-D
3. vitamin-A
4. vitamin-B
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When a neuron is at resting state, i.e., not conducting any impulse, the axonal membrane is
| 1. | equally permeable to both and ions |
| 2. | impermeable to both and ions |
| 3. | comparatively more permeable to ions and nearly impermeable to ions |
| 4. | comparatively more permeable to ions and nearly impermeable to ions |
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The nerve centres which control the body temperature and the urge for eating are contained in
1. hypothalamus
2. pons
3. cerebellum
4. thalamus
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Alzheimer’s disease in humans is associated with the deficiency of
1. dopamine
2. glutamic acid
3. acetylcholine
4. Gamma Amino Butyric Acid (GABA)
Which one of the following does not act as a neurotransmitter?
1. Acetylcholine
2. Epinephrine
3. Norepinephrine
4. Cortisone
Which of the following pesticides is an acetylcholinesterase inhibitor?
1. Aldrin
2. BHC
3. Endosulfan
4. Malathion
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