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Q. No.Which of the following is the correct description of the relation between T cells and B cells?
1.
Both are processed in bone marrow and respond to antigen from thymus
2.
T cells help B cells produce antibodies
3.
B cells increase the phagocytic capabilities of T cells
4.
While B cells are involved in first response to an antigen, T cells respond to subsequent encounters with the same antigen
Subtopic: Human Immune System |
74%
From NCERT
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HIV infection can cause life-threatening opportunistic infections in humans as it attacks and destroys:
1. Helper T cells
2. Cytotoxic T cells
3. Suppressor T cells
4. B cells
1. Helper T cells
2. Cytotoxic T cells
3. Suppressor T cells
4. B cells
Subtopic: AIDS |
94%
From NCERT
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Erythroxylum coca, Atropa belladonna, and Datura innoxia are plants:
| 1. | that are critically endangered according to the IUCN list. |
| 2. | which have become invasive in Indian ecosystems. |
| 3. | with hallucinogenic properties. |
| 4. | found only in the Himalayan region of the Indian subcontinent. |
Subtopic: Drugs & Alcohol Abuse |
94%
From NCERT
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The disease Elephantiasis or Filariasis:
1. is transmitted by contaminated food and water.
2. is caused by a pathogenic flatworm.
3. causes chronic inflammation of the lymph vessels.
4. causes intestinal obstruction leading to swelling of abdomen, especially in children.
1. is transmitted by contaminated food and water.
2. is caused by a pathogenic flatworm.
3. causes chronic inflammation of the lymph vessels.
4. causes intestinal obstruction leading to swelling of abdomen, especially in children.
Subtopic: Ascariasis & Filariasis |
85%
From NCERT
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Identify a disease that is caused by an abnormality where the ability of the acquired immune system to distinguish between self and non-self is compromised:
| 1. | Creutzfeldt Jakob Disease | 2. | Rheumatoid arthritis |
| 3. | Oculo-cutaneous albinism | 4. | Diabetes insipidus |
Subtopic: Allergies & Autoimmunity |
92%
From NCERT
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Match the pathogens that can cause disease in humans in Column I with their correct biological names in Column II and select the correct match from the codes given:
| Column I | Column II | ||
| a. | Filariasis | (i) | Haemophilus influenza |
| b. | Amoebiasis | (ii) | Trichophyton |
| c. | Pneumonia | (iii) | Wuchereria bancrofti |
| d. | Ringworm | (iv) | Entamoeba histolytica |
| (a) | (b) | (c) | (d) | |
| 1. | (i) | (ii) | (iv) | (iii) |
| 2. | (ii) | (iii) | (i) | (iv) |
| 3. | (iv) | (i) | (iii) | (ii) |
| 4. | (iii) | (iv) | (i) | (ii) |
Subtopic: Pneumonia & Related Questions | Common Cold & Malaria Introduction | Amoebiasis | Fungal Infection & Concept of Immunity |
93%
From NCERT
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Regarding the stages in the life cycle of Plasmodium:
| I: | Sporozoite is the infective stage for man |
| II: | In human body it first reproduces asexually in liver cells |
| III: | fertilization takes place in the gut of the mosquito |
| 1. | Only I and II are correct |
| 2. | Only I and III are correct |
| 3. | Only II and III are correct |
| 4. | I, II and III are correct |
Subtopic: Common Cold & Malaria Introduction | Treatment & Life Cycle of Malaria |
80%
From NCERT
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Allergies are hypersentive immune responses that are mediated by the antibodies of the class:
1. IgA
2. IgE
3. IgG
4. IgM
1. IgA
2. IgE
3. IgG
4. IgM
Subtopic: Details of Immunity |
90%
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Identify the incorrect statement:
| 1. | Morphine is a potent painkiller |
| 2. | Excessive dose of cocaine can cause hallucinations |
| 3. | Nicotine stimulates adrenal cortex to secrete mineralocorticoids |
| 4. | Marijuana is derived from Cannabis sativa |
Subtopic: Drugs & Alcohol Abuse |
82%
From NCERT
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What is incorrect regarding typhoid fever in human beings?
| 1. | It is caused by a bacterium |
| 2. | The pathogen is transmitted through contaminated food and water |
| 3. | It can be confirmed by the Widal test |
| 4. | No carrier state is seen in typhoid fever |
Subtopic: Typhoid Fever |
89%
From NCERT
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