Identify the molecules (a) and (b) shown below and select the right option giving their source:
(a)
(b)
Molecule
Source
Use
1.
(a) Etropine
Athropa belladona
Accelerates the transport of dopamine
2.
(b) Diacetylmorphine
Cannabis Sativa
Depressant and slows down body functions
3.
(a) Cannabinoid
Erythroxylum coca
Produces hallucinations
4.
(b) Morphine
Papaver somniferum
Sedative and painkiller
Subtopic: Â Drugs & Alcohol Abuse |
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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.
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: Â 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.
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: Â 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.
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: Â Active & Passive Immunity |
 78%
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.
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: Â AIDS |
 88%
From NCERT
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Assertion (A): Smoking and drug habits are more likely to be taken up during adolescence.
Reason (R): It is best to identify the situations that may push an adolescent towards the use of drugs or alcohol.
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.
Reason (R): It is best to identify the situations that may push an adolescent towards the use of drugs or alcohol.
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: Â Drugs & Alcohol Abuse |
 63%
From NCERT
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Assertion (A): Antibody-mediated immune response is called the humoral immune response.
Reason (R): Antibodies are found in the lymph.
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.
Reason (R): Antibodies are found in the lymph.
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: Â Details of Immunity |
 50%
From NCERT
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Assertion (A): Sudden sneezing and wheezing are symptoms of allergy to pollen, mites, etc.
Reason (R): Some of us are sensitive to some particles in the environment.
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.
Reason (R): Some of us are sensitive to some particles in the environment.
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: Â Allergies & Autoimmunity |
From NCERT
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Assertion (A): In recent times, people get a comparatively protected environment early in life than older days.
Reason (R): Children in metro cities suffer from allergies.
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.
Reason (R): Children in metro cities suffer from allergies.
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: Â Allergies & Autoimmunity |
 61%
From NCERT
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Assertion (A): Drugs are frequently used.
Reason (R): Drugs have many perceived benefits.
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.
Reason (R): Drugs have many perceived benefits.
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: Â Drugs & Alcohol Abuse |
 51%
From NCERT
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