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 |
 66%
From NCERT
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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 |
 86%
From NCERT
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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%
From NCERT
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Cancer detection is mainly based on:

1. Radiography 2. Ultrasonography
3. Magnetic resonance imaging 4. Histopathology
Subtopic:  Cancer |
 58%
From NCERT
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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 |
 65%
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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 |
 92%
From NCERT
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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 |
 64%
From NCERT
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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 |
 91%
From NCERT
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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 |
 93%
From NCERT
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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 |
 74%
From NCERT
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