Coca alkaloid or cocaine is obtained from:
1. | Papaver somniferum | 2. | Atropa belladonna |
3. | Erythroxylum coca | 4. | Datura |
Asthma may be attributed to :
1. accumulation of fluid in the lungs
2. bacterial infection of the lungs
3. allergic reaction of the mast cells in the lungs
4. inflammation of the trachea
Which of the following cannot be included under the secondary lymphoid organ?
1. Thymus
2. MALT
3. Spleen
4. Lingual tonsil
A person is injected with gamma-globulin against Snake venom. This is
1. Artificially acquired active immunity
2. Artificially acquired passive immunity
3. Naturally acquired active immunity
4. Naturally acquired passive immunity
In which of the following organ immature lymphocytes differentiate into antigen sensitive lymphocytes?
1. Thymus
2. Spleen
3. Peyer’s patches
4. Appendix
Which of following stage of plasmodium is formed in mosquito:-
1. Sporozoite
2. Gametes
3. Both (1) and (2)
4. Gametocytes
Read the following statements:
(i) The main antibody produced as a result of allergic reaction is lgA.
(ii) Modern-day lifestyle has resulted in lowering immunity and more sensitivity to allergens.
(iii) Recombinant DNA technology has allowed the production of antigenic polypeptides of pathogens in bacteria or yeasts.
(iv) Allergy is suppressed due to the release of histamine and serotonin.
(v) The drugs like anti-histamines, adrenaline, and steroids quickly reduce the symptoms of allergy.
Which of the above statements are incorrect?
1. (ii), (iii), (v)
2. (i), (iv)
3. (ii), (v)
4. (ii), (iii)
Choose the correct option regarding the drug, its source, and its effect on the body
|
Drug |
Source |
Effect |
1. |
Coke |
Erythroxylum coca |
CNS depressant |
2. |
Heroin |
Papaver somniferum |
Stimulant |
3. |
Hashish |
Cannabis sativa |
Hallucinogen |
4. |
Datura |
Jimson's weed |
Stimulant |
Read the following statements about cancer and mark the incorrect ones
(i) | Ionising radiations like x-rays and UV rays and non-ionizing radiations like gamma rays cause DNA damage leading to neoplastic transformation. |
(ii) | CT scan uses non-ionizing radiations to accurately detect pathological and physiological changes in the living tissue. |
(iii) | Antibodies against cancer-specific antigents are also used for detection of certain cancers. |
(iv) | Some of the chemotherapeutic drugs are specific for certain cancers. |
1. | (i), (ii) and (iii) | 2. | (i) and (ii) |
3. | (iii) and (iv) | 4. | (ii) and (iv) |
Salmonella typhi causes:
1. An acute infection of intestine that causes high fever and weakness
2. Enlargement of spleen and pain in stomach
3. Rose coloured rashes on the body
4. All of the above