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Q. No.Which of the following drugs has a potent stimulating action on CNS, producing a sense of euphoria and increased energy?
1.
Cocaine
2.
Morphine
3.
Barbiturates
4.
Benzodiazepines
Subtopic: Drugs & Alcohol Abuse |
79%
From NCERT
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Identify the incorrect statement regarding HIV/AIDS:
| 1. | HIV is a retrovirus |
| 2. | HIV can be transmitted from an infected mother to her child through placenta. |
| 3. | The time lag between infection and the appearance of AIDS symptoms is 7-10 days. |
| 4. | HIV destroys helper T lymphocytes. |
Subtopic: AIDS |
94%
From NCERT
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Identify the incorrectly matched pair:
| 1. | Bone marrow | Primary lymphoid organ |
| 2. | Thymus | Increases in size after puberty |
| 3. | Payer’s patches | Present in small intestine and appendix |
| 4. | Spleen | Has a large reservoir of RBCs |
Subtopic: Human Immune System |
89%
From NCERT
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Which of the following will not be an example of passive immunity?
| 1. | Foetus receiving antibodies from their mother, through placenta. |
| 2. | Immunity conferred by IgA antibodies present in colostrums. |
| 3. | Giving antivenom [containing antibodies against venom] after snake bite |
| 4. | A person developing immunity after natural infection by a pathogen |
Subtopic: Active & Passive Immunity |
83%
From NCERT
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Identify the incorrectly matched pair:
| 1. | Wuchereria | Filariasis |
| 2. | Streptococcus | Pneumonia |
| 3. | Rhinoviruses | Common cold |
| 4. | Trichoderma | Ringworm |
Subtopic: Pneumonia & Related Questions | Common Cold & Malaria Introduction | Ascariasis & Filariasis | Fungal Infection & Concept of Immunity |
70%
From NCERT
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Nicotine:
| 1. | is a CNS depressant and can cause respiratory depression |
| 2. | commonly leads to development of cirrhosis of liver |
| 3. | stimulates adrenal gland to release adrenaline and nor-adrenaline |
| 4. | is very effective analgesic and sedative |
Subtopic: Drugs & Alcohol Abuse |
77%
From NCERT
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Droplets can be the mode of transmission of pathogens causing all the following diseases except:
1. Ascariasis
2. Pneumonia
3. Common cold
4. Covid-19
1. Ascariasis
2. Pneumonia
3. Common cold
4. Covid-19
Subtopic: Pneumonia & Related Questions | Common Cold & Malaria Introduction | Ascariasis & Filariasis |
86%
From NCERT
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Which of the following conditions can be caused by exposure to allergens?
1. Asthma
2. Rheumatoid arthritis
3. Japanese encephalitis
4. Leukaemia
1. Asthma
2. Rheumatoid arthritis
3. Japanese encephalitis
4. Leukaemia
Subtopic: Allergies & Autoimmunity |
91%
From NCERT
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Which diseases given in Column I is not correctly matched with sign and symptoms in Column II?
| COLUMN I | COLUMN II | |
| 1. | Filariasis | Inflammation and swelling in lower limbs and scrotum |
| 2. | Ringworm | Internal bleeding, muscular pain, fever, and anaemia |
| 3. | Amoebiasis | Abdominal pain, stools with excess mucous, and blood clots |
| 4. | Pneumonia | Fever, chills, cough, breathing difficulties |
Subtopic: Pneumonia & Related Questions | Amoebiasis | Ascariasis & Filariasis | Fungal Infection & Concept of Immunity |
88%
From NCERT
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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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