Assertion(A): 'Coke' or 'Crack' or cocaine is usually snored.
Reason(R): Cocaine has a potent stimulating action on CNS, producing a sense of euphoria and increased energy.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.

Subtopic:  Drugs & Alcohol Abuse |
 74%
From NCERT
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Assertion(A): Blood cells involved in inflammatory reactions are basophils.
Reason(R): Antibodies in our body are complex glycoproteins.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic:  Details of Immunity | Allergies & Autoimmunity |
 75%
From NCERT
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Assertion(A): The treatment of snake bit by antivenom is artificially acquired passive immunity.
Reason(R): Snake's venom is a type of lipoprotein.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic:  Details of Immunity | Human Immune System |
From NCERT
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Assertion(A): MALT constitutes about 50% of the lymphoid tissue in human body.
Reason(R): Lymphoid tissue is located within the lining of the major tracts like respiratory, digestive and urinogenital tract.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic:  Human Immune System |
 51%
From NCERT
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Match the columns:
Column-I Column-II
A. Poppy plant (i) Etythroxylun
B. Hemp plant (ii) Theobroma
C. Coca plant (iii) Cannabis
D. Cocoa plant (iv) Papaver

1. A = (iv); B = (iii); C = (i); D = (ii)
2. A = (iv); B = (i); C = (ii); D = (iii)
3. A = (iii); B = (i); C = (iv); D = (ii)
4. A = (ii); B = (i); C = (iv); D = (iii)
Subtopic:  Drugs & Alcohol Abuse |
 88%
From NCERT
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Read the following statements :
(i) Humoral immunity consists of B-lymphocytes which produce antibodies that circulate in the body fluids
(ii) Cell mediated  immunity  consists  of T-lymphocytes
(iii) Humoral immunity does    not respond to transplants
(iv) Cell mediated    immunity    reacts    against transplants
(v) Humoral immunity provides immunity against cancer but cell mediated immunity does not
How many of the above statements are correct?
1. Four
2. Five
3. Three
4. Two
Subtopic:  Active & Passive Immunity |
From NCERT
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Assertion (A): Both mind and mental health can affect health.
Reason (R): Mind influences, through our neural system and endocrine system, our immune system.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic:  Introduction |
 84%
From NCERT
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Assertion (A): An antibody is represented as H2L2.
Reason (R): An antibody molecule has two heavy chains and two light chains.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic:  Details of Immunity |
 92%
From NCERT
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Assertion (A): Recombinant DNA Technology has not contributed much to the greater availability of immunization.
Reason (R): RDT has allowed the production of antigenic polypeptides of pathogens.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic:  Active & Passive Immunity |
 76%
From NCERT
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Assertion (A): AIDS patients are not isolated from family and society.
Reason (R): AIDS spreads through mere touch and physical contact.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic:  AIDS |
 88%
From NCERT
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