Q. No.A drug that depresses brain activity and produces feeling of calmness, relaxation, and drowsiness, is :
1.
Morphine
2.
Valium
3.
Caffeine
4.
LSD
Which of the following is not a hallucinogenic drug?
| 1. | LSD | 2. | Mescaline |
| 3. | Morphine | 4. | Hashish |
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A drug used to treat attention deficit disorder is :
| 1. | Valium | 2. | Amphetamine |
| 3. | LSD | 4. | Psilocybin |
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Nicotine functions as a stimulant because it stimulates the release of:
1. Adrenaline
2. Thyroxine
3. Dopamine
4. Acetylcholine
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The part of the brain most commonly affected by the consumption of alcohol is :
| 1. | Medulla oblongata | 2. | Reticular formation |
| 3. | Cerebellum | 4. | Cerebrum |
Which of the following is not a documented effect of alcoholism?
| 1. | intrauterine growth retardation in the fetus if the pregnant female consumes alcohol |
| 2. | cirrhosis of liver secondary to fatty deposition in the liver |
| 3. | an increase in the secretion of ADH by the supraoptic nucleus leading to retention of urine |
| 4. | gastritis and pancreatitis |
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Methanol is converted to formaldehyde in our bodies. It inhibits mitochondrial cytochrome c oxidase. It also causes blindness. The treatment of methanol toxicity is :
| 1. | Thiamine | 2. | L - Dopa |
| 3. | Ethanol | 4. | Atropine |
A tumor that invades surrounding tissues is usually capable of producing metastases, may recur after attempted removal, and is likely to cause death unless adequately treated. Such a tumor is called a:
| 1. | Benign tumor | 2. | Malignant tumor |
| 3. | Teratoma | 4. | Secondary tumor |
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Cancer detection is mainly based on:
| 1. | Radiography | 2. | Ultrasonography |
| 3. | Magnetic resonance imaging | 4. | Histopathology |
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HIV selectively infects and destroys:
| 1. | CD4 T Lymphocytes | 2. | CD8 T Lymphocytes |
| 3. | T-Suppressor cells | 4. | B-Lymphocytes |
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