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Q. No.Which of the following provides a micro-environment for the development and maturation of T-lymphocytes?
1. Spleen
2. Lymph nodes
3. Mucosa-associated lymphoid tissue
4. Thymus
Subtopic: Human Immune System |
85%
From NCERT
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Acid in the stomach and saliva in the mouth are which type of barriers of innate immunity?
1. Physical
2. Physiological
3. Cellular
4. Cytokine
1. Physical
2. Physiological
3. Cellular
4. Cytokine
Subtopic: Details of Immunity |
95%
From NCERT
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Consider the given two statements:
| Assertion (A): | Cocaine can produce a sense of euphoria and increased energy. |
| Reason (R): | It has a potent stimulating action on the central nervous system. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A) |
| 2. | Both (A) and (R) are True and (R) does not correctly explain (A) |
| 3. | (A) is True, (R) is False |
| 4. | (A) is False, (R) is False |
Subtopic: Drugs & Alcohol Abuse |
90%
From NCERT
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Consider the given two statements:
1. Only Statement I is correct.
2. Only Statement II is correct.
3. Both Statement I and Statement II are correct.
4. Both Statement I and Statement II are incorrect.
| Statement I: | Aedes mosquito spread diseases like dengue and chikungunya. |
| Statement II: | Gambusia is used to control mosquito-borne diseases. |
2. Only Statement II is correct.
3. Both Statement I and Statement II are correct.
4. Both Statement I and Statement II are incorrect.
Subtopic: Common Diseases in Humans |
95%
From NCERT
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Which of the following is correct regarding mode of transmission for diseases?
| 1. | Diseases cannot be transmitted through water. |
| 2. | Airborne transmission is exclusive to non-infectious diseases. |
| 3. | Vector-borne transmission involves the spread of diseases by organisms such as mosquitoes and ticks. |
| 4. | Direct contact is not a significant mode of transmission for infectious diseases. |
Subtopic: Common Diseases in Humans |
92%
From NCERT
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Which of the following statements about adaptive immunity is correct?
| 1. | Adaptive immunity provides immediate defense against pathogens without the need for prior exposure. |
| 2. | It is non-specific and does not distinguish between different pathogens. |
| 3. | Adaptive immunity involves memory, which leads to an enhanced response to repeated exposure to the same pathogen. |
| 4. | Antibodies play no role in the function of adaptive immunity. |
Subtopic: Details of Immunity |
88%
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Match the following components of innate immunity with their corresponding barriers:
1. A-1, B-4, C-2, D-3
2. A-3, B-1, C-4, D-2
3. A-2, B-3, C-1, D-4
4. A-4, B-2, C-3, D-1
| Column I | Column II | ||
| A | Skin | 1 | Physical barrier |
| B | Mucus | 2 | Chemical barrier |
| C | Stomach acid | 3 | Cellular barrier |
| D | Macrophages | 4 | Mechanical barrier |
1. A-1, B-4, C-2, D-3
2. A-3, B-1, C-4, D-2
3. A-2, B-3, C-1, D-4
4. A-4, B-2, C-3, D-1
Subtopic: Details of Immunity |
96%
From NCERT
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Graft rejection in organ transplantations is primarily due to:
| 1. | Infections introduced during surgery. |
| 2. | The recipient's cell mediated immune system recognizing the graft as foreign. |
| 3. | The recipient's humoral immune system recognizing the graft as foreign. |
| 4. | Incompatibility in blood type only. |
Subtopic: Details of Immunity |
92%
From NCERT
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Which of the following events occurs in the life cycle of the malarial parasite, Plasmodium, inside the human body?
| 1. | The parasite multiplies in the liver before infecting red blood cells. |
| 2. | Sporozoites multiply within red blood cells. |
| 3. | Gametocytes are formed in the stomach wall of the Anopheles mosquito. |
| 4. | The parasite undergoes sexual reproduction in the human liver. |
Subtopic: Treatment & Life Cycle of Malaria |
77%
From NCERT
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The primary difference between active and passive immunity is:
| 1. | Active immunity is long-lasting, while passive immunity is temporary. |
| 2. | Active immunity is provided by vaccines, while passive immunity is provided by natural infection. |
| 3. | Passive immunity involves the production of antibodies by the individual's own immune system. |
| 4. | Active immunity is immediate, while passive immunity takes time to develop. |
Subtopic: Active & Passive Immunity |
84%
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