Assertion(A): | Most parasites are pathogens. |
Reason(R): | They cause harm to the host by living in (or on) them. |
1. | Both (A) and (R) are true and (R) correctly explains (A). |
2. | Both (A)and (R) are false |
3. | (A) is true but (R) is false. |
4. | Both (A) and (R) are true but (R) does not explain (A) |
1. | the release of cytokines like interferons by natural killer cells |
2. | the release of histamine and serotonin like chemicals in tissue by basophils |
3. | the release of lysozyme into the body fluids in response to allergens |
4. | the release of histamine and serotonin like chemicals in tissue by mast cells |
(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 |
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. |
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. |