MCQOPTIONS
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MCQOPTIONS
This section includes 88 Mcqs, each offering curated multiple-choice questions to sharpen your Immune Response knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
Which of the following immunity is obtained during a lifetime? |
| A. | Innate immunity |
| B. | Active immunity |
| C. | Passive immunity |
| D. | Both (b) and (c) |
| Answer» E. | |
| 52. |
Which of the following cells is involved in humoral immunity? |
| A. | T-cells |
| B. | B-cells |
| C. | Mast cells |
| D. | Both T and B cells |
| Answer» C. Mast cells | |
| 53. |
Which of the following does not act as a protecting barrier for the body surface? |
| A. | Skin |
| B. | Mucus |
| C. | Gastric acid |
| D. | Salivary amylase |
| Answer» E. | |
| 54. |
Which of the following conveys the longest-lasting immunity to an infectious agent? |
| A. | Active immunity |
| B. | Passive immunity |
| C. | Both (a) and (b) |
| D. | None of the above |
| Answer» B. Passive immunity | |
| 55. |
Which of the following proteins in fruit fly play the major function of dorsoventral polarity of the fly embryo? |
| A. | Toll |
| B. | NEF1 |
| C. | Transposons |
| D. | Linker DNA |
| Answer» B. NEF1 | |
| 56. |
In agglutination reactions, the antigen is a in precipitation reactions, the antigen is a |
| A. | whole cell/soluble molecule |
| B. | Soluble molecule/whole cell |
| C. | Bacterium/virus |
| D. | Protein/carbohydrates |
| Answer» B. Soluble molecule/whole cell | |
| 57. |
B and T cells are produced by stem cells that are formed in: |
| A. | Bone marrow |
| B. | The liver |
| C. | The circulatory system |
| D. | The spleen |
| Answer» B. The liver | |
| 58. |
B cells mature in the .. while T cells mature in the |
| A. | Thymus/bone marrow and gut-associated lymphoid tissue (GALT) |
| B. | Spleen/bone marrow and GALT |
| C. | Bone marrow and GALT/Thymus |
| D. | Liver/Kidneys |
| Answer» D. Liver/Kidneys | |
| 59. |
The specificity of an antibody is due to |
| A. | its valence |
| B. | The heavy chains |
| C. | The Fc portion of the molecule |
| D. | The variable portion of the heavy and light chain |
| Answer» E. | |
| 60. |
Which of the following substances will not stimulate an immune response unless they are bound to a larger molecule? |
| A. | Antigen |
| B. | Virus |
| C. | Hapten |
| D. | Miligen |
| Answer» D. Miligen | |
| 61. |
Naturally acquired active immunity would be most likely acquired through which of the following processes? |
| A. | vaccination |
| B. | drinking colostrum |
| C. | natural birth |
| D. | infection with disease-causing organism followed by recovery. |
| Answer» E. | |
| 62. |
Which of the following convey the longest-lasting immunity to an infectious agent? |
| A. | Naturally acquired passive immunity |
| B. | Artificially acquired passive immunity |
| C. | Naturally acquired active immunity |
| D. | All of these |
| Answer» D. All of these | |
| 63. |
Which antibody is produced at high levels in response to parasitic functions? |
| A. | IgA |
| B. | IgE |
| C. | IgG |
| D. | IgD |
| Answer» C. IgG | |
| 64. |
B cells that produce and release large amounts of antibody are called: |
| A. | Memory cells |
| B. | Basophils |
| C. | Plasma cells |
| D. | Neutrophils |
| Answer» D. Neutrophils | |
| 65. |
A living microbe with reduced virulence that is used for vaccination is considered: |
| A. | A toxoid |
| B. | Dormant |
| C. | Attenuated |
| D. | Virulent |
| Answer» D. Virulent | |
| 66. |
Which of the following immune cells/molecules are most effective at destroying intracellular pathogens? |
| A. | T helper cells |
| B. | B cells |
| C. | Antibodies |
| D. | T cytolytic cells |
| Answer» E. | |
| 67. |
The heavy and light chains of the antibodies are linked to one another by ____________________ |
| A. | covalent bonds |
| B. | disulfide bonds |
| C. | ionic bonds |
| D. | hydrogen bonds |
| Answer» C. ionic bonds | |
| 68. |
Which of the following serves as antigen receptors? |
| A. | antibodies |
| B. | cytokines |
| C. | chemokines |
| D. | necrosis factors |
| Answer» B. cytokines | |
| 69. |
A harmless version of tetanus toxin is called _________________ |
| A. | clostridium |
| B. | plasmid |
| C. | toxoid |
| D. | thylakoid |
| Answer» D. thylakoid | |
| 70. |
Which is the first antibody secreted by B cells following stimulation by an antigen? |
| A. | IgG |
| B. | IgM |
| C. | IgE |
| D. | IgD |
| Answer» C. IgE | |
| 71. |
Which of the following cell types of the innate immune system does not perform phagocytosis? |
| A. | Neutrophils |
| B. | Basophils |
| C. | Macrophages |
| D. | Eosinophils |
| Answer» C. Macrophages | |
| 72. |
Monocytes move from the systemic circulatory system into general connective tissues, where they differentiate into what phagocytic cell type? |
| A. | Macrophage |
| B. | T cell |
| C. | B cell |
| D. | Neutrophil |
| Answer» B. T cell | |
| 73. |
Which of the following immunity is present from our birth? |
| A. | Innate Immunity |
| B. | Active immunity |
| C. | Passive immunity |
| D. | Acquired immunity |
| Answer» B. Active immunity | |
| 74. |
Which of the following systems protects our body against disease-causing microbes? |
| A. | Immune system |
| B. | Digestive system |
| C. | Excretory system |
| D. | Respiratory system |
| Answer» B. Digestive system | |
| 75. |
Meory cells are formed from |
| A. | Erythropoietic stem cells |
| B. | Monocytes |
| C. | T-lymphocytes |
| D. | B-lymphocytes |
| Answer» E. | |
| 76. |
Macrophages are derived from |
| A. | Neutrophils |
| B. | Lymphocytes |
| C. | Monocytes |
| D. | Basophils |
| Answer» D. Basophils | |
| 77. |
Innate immunity is provided by |
| A. | Phagocytes |
| B. | Antibodies |
| C. | T-Lymphocytes |
| D. | B-Lymphocytes |
| Answer» B. Antibodies | |
| 78. |
Which one engulfs foreign materials |
| A. | Macrophages |
| B. | Lymphocytes |
| C. | Plasma cells |
| D. | Mast cells |
| Answer» B. Lymphocytes | |
| 79. |
Innate immunity is |
| A. | Active acquired immunity |
| B. | Passive acquired immunity |
| C. | Inborn immunity |
| D. | Both B and C |
| Answer» D. Both B and C | |
| 80. |
Inflammatory response in allergy is due to release by mast cells of |
| A. | Antibodies |
| B. | Antigens |
| C. | Histamine |
| D. | All the above |
| Answer» D. All the above | |
| 81. |
Inflammation reaction is brought about by |
| A. | Plasma cells |
| B. | Mast cells |
| C. | Macrophages |
| D. | Adipose cells |
| Answer» C. Macrophages | |
| 82. |
Immunity acquired after an infection is |
| A. | active immunity |
| B. | Passive immunity |
| C. | Innate immunity |
| D. | Both B and C |
| Answer» B. Passive immunity | |
| 83. |
Immunological destruction of body tissue or product due to antibodies reacting with it as antigen is called |
| A. | Anaphylaxis |
| B. | Autoimmune diseases |
| C. | Prophylaxis |
| D. | Immunodeficiency disease |
| Answer» C. Prophylaxis | |
| 84. |
Increased asthmatic attacks in certain seasons are due to |
| A. | Inhalation of seasonal pollen |
| B. | Heat and humidity |
| C. | Low temperature |
| D. | Eating preserved fruits |
| Answer» B. Heat and humidity | |
| 85. |
Passive immunity is obtained through injecting |
| A. | Antibiotics |
| B. | Vaccines |
| C. | Antibodies |
| D. | Antigens |
| Answer» D. Antigens | |
| 86. |
Which one helps in differentiation of cells of immune system |
| A. | Cortiosol |
| B. | Thymosin |
| C. | Steroid |
| D. | Thyroxine |
| Answer» C. Steroid | |
| 87. |
Passive immunity is |
| A. | Acquired through natural overt or latent infection |
| B. | Acquired through Vaccination |
| C. | Acquired through readymade antibodies |
| D. | Acquired by activating immune system of the body |
| Answer» D. Acquired by activating immune system of the body | |
| 88. |
O blood group is universal donor because the blood has |
| A. | Antigen A |
| B. | Antigen B |
| C. | Both antigens A and B |
| D. | No antigens |
| Answer» E. | |