| 1. | Outer layer of adrenal gland is called |
| a. | adrenal cortex |
| b. | adrenal medulla |
| c. | cortex |
| d. | medulla |
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Answer: (a).adrenal cortex
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| 2. | When an impulse reaches a synaptic knob, synaptic vesicles fuse with the |
| a. | pre-synaptic membrane |
| b. | post-synaptic membrane |
| c. | synaptic cleft |
| d. | neurotransmitters |
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Answer: (a).pre-synaptic membrane
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| 3. | Main transmitter for synapses that lie outside central nervous system is |
| a. | serotonin |
| b. | adrenaline |
| c. | acetylcholine |
| d. | dopamine |
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Answer: (c).acetylcholine
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| 4. | Medulla of adrenals produces hormone |
| a. | adrenaline |
| b. | nor-adrenaline |
| c. | cortico-steroids |
| d. | Both a and b |
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Answer: (d).Both a and b
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| 5. | Weed killing is done by |
| a. | 2,4 D |
| b. | NAA |
| c. | IAA |
| d. | Ethane |
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Answer: (a).2,4 D
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