Cocaine acts through:

1. Interfering with the action of acetylcholine

2. Potentiating catecholamines

3. Interfering with the transport of dopamine

4. Releasing endorphins and enkephalins

Subtopic:  Drugs & Alcohol Abuse |
 84%
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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
Subtopic:  Cancer |
 94%
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Cancer detection is mainly based on:

1. Radiography 2. Ultrasonography
3. Magnetic resonance imaging 4. Histopathology
Subtopic:  Cancer |
 55%
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HIV selectively infects and destroys:

1. CD4 T Lymphocytes 2. CD8 T Lymphocytes
3. T-Suppressor cells 4. B-Lymphocytes
Subtopic:  AIDS |
 67%

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The early screening test for HIV infection is :

1. ELISA

2. Western Blot

3. Culture of HIV

4. Detection of opportunistic infections

Subtopic:  AIDS |
 90%
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Cannabinoid receptors are principally located in the brain but they also have side effects on:

1. GIT 2. CVS
3. Liver 4. Lungs
Subtopic:  Drugs & Alcohol Abuse |
 65%
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A normal cellular gene which when altered by mutation can contribute to cancer is called:

1.  Oncogene 2.  V – Onc
3.  Neoplastic gene 4.  Proto-oncogene
Subtopic:  Cancer |
 63%
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Small masses of lymphatic tissue found throughout the ileum region of the small intestine are called:

1. Paneth cells 2. Meissener’s Plexus
3. Peyer’s patches 4. Entero-chromaffin cells

Subtopic:  Human Immune System |
 89%
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What constitutes about 50% of the lymphoid tissue in the human body?

1. Malt 2. Spleen
3. Lymph nodes 4. Liver
Subtopic:  Details of Immunity | Active & Passive Immunity | Allergies & Autoimmunity | Human Immune System |
 94%
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Which of the following is not a function of spleen?

1.  It acts as a filter of the blood by trapping blood-borne microorganisms
2.  It acts as a large reservoir of RBCs
3.  It filters our old RBCs
4.  It continues to form RBCs for a few years after birth

Subtopic:  Fungal Infection & Concept of Immunity | Details of Immunity |
 71%
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