Immunity System Questions – Paper 03, Total Questions: 20, Subject: Biology, Topic: Immunity System, Question Type: MCQs (Multiple Choice Questions)
| Sr. No. | Questions | Answers |
| 1. | Blood group O has (a) Antigen A and antibody b (b) No antigen nor antibody (c) No antigen but both a and b antibodies (d) Antigens A and B and antibodies a and b |
Answer: (c) |
| 2. | Blood of AB group cannot be given to B group patient because (a) Patient has antibodies b (b) Patient lacks antibodies b (c) patient lacks antibodies a (d) patient has antibodies a |
Answer: (d) |
| 3. | Both B-cells and T-cells of immune system are produced in (a) Spleen (b) L lymphoid nodes (c) Bone marrow (d) Thymus |
Answer: (c) |
| 4. | Cells involved in immune mechanism are (a) Erthyrocytes (b) Lymphocytes (c) Eosinophils (d) Thrombocytes |
Answer: (b) |
| 5. | Cells of immune system that cause pore formation in the antigen are (a) Helper T-cells (b) Killer T-cells (c) Suppressor T-cells (d) B-cells |
Answer: (b) |
| 6. | Character of acquired immunity is (a) differentiation of self and nonself (b) specificity of antigen (c) retains memory (d) all the above |
Answer: (d) |
| 7. | Chemically an antibody is (a) Protein (b) Lipoprotein (c) Lipid (d) Nucleoprotein |
Answer: (a) |
| 8. | Child death may occur in the marriage of (a) Rh+ man and Rh+ woman (b) Rh+ man and Rh- woman (c) Rh- man and Rh+ woman (d) Rh- man and Rh+ woman |
Answer: (b) |
| 9. | Conversion of antigen into harmless insoluble matter by antibodies is (a) Agglutination (b) Opsonisation (c) Neutralisation (d) Activation |
Answer: (a) |
| 10. | During infection T-cells interact with (a) Macrophages (b) B-cells (c) Infected cells (d) Erythrocytes |
Answer: (b) |
| 11. | During inflammation which of the following is secreted by connective tissue (a) Heparin (b) Serotonin (c) Glucagon (d) Histamine |
Answer: (d) |
| 12. | Father of immunology is (a) Ferdinand Kohn (b) Robert Koch (c) Louis Pasteur (d) Edward Jenner |
Answer: (d) |
| 13. | Gamma-globulins are synthesized in (a) Lymph and lymph nodes (b) Liver (c) Bone marrow (d) Kidney |
Answer: (a) |
| 14. | Hay fever is due to (a) Hepatitis (b) Allergy (c) Dengue (d) Helper T-cells |
Answer: (b) |
| 15. | Histamiens or inflammation producing substances are formed by (a) Macrophages (b) Sustentacular cells (c) Mast cells (d) Collagen fibres |
Answer: (c) |
| 16. | How many variable segments are present in an antibody (a) 1 (b) 2 (c) 3 (d) 4 |
Answer: (b) |
| 17. | Humoral immunity is due to (a) T-lymphocytes (b) L- lymphocytes (c) P- lymphocytes (d) B- lymphocytes |
Answer: (d) |
| 18. | Husband and wife should know their Rh factors because the situation can be serious due to biological incompatibility in one of the following cases (a) Rh+ husband and Rh+ wife (b) Rh- husband and Rh- wife (c) Rh- husband and Rh+ wife (d) Rh+ husband and Rh- wife |
Answer: (d) |
| 19. | Hypersensitivity to an allergen is due to (a) Increase in temperature (b) Food habits (c) Age (d) Aberrent functioning of immune system |
Answer: (d) |
| 20. | If a man is Rh+ and woman Rh- (a) Their first child will die (b) No child will be born (c) the first child will survive (d) All the children will survive |
Answer: (c) |