Q1. Which class of immunoglobulin is primarily responsible for primary immune response?A. IgAB. IgGC. IgMD. IgE
Q2. Which type of hypersensitivity reaction involves IgE antibodies and mast cells?A. Type IB. Type IIC. Type IIID. Type IV
Q3. Which of the following statements about autoimmunity is incorrect?A. Autoimmune diseases occur when the immune system attacks the body's own cells.B. Autoimmune diseases are caused by external pathogens.C. Rheumatoid arthritis is an example of an autoimmune disease.D. Multiple sclerosis is an autoimmune disease.
Q4. Which of the following is an example of passive immunity?A. VaccinationB. Injection of pre-formed antibodiesC. Natural infection and recoveryD. Development of memory cells
Q5. Which of the following is the causative agent of typhoid fever?A. Vibrio choleraeB. Plasmodium vivaxC. Salmonella typhiD. Mycobacterium tuberculosis
Q6. Which of the following statements about B-lymphocytes is incorrect?A. B-lymphocytes are responsible for humoral immunity.B. B-lymphocytes mature in the bone marrow.C. B-lymphocytes directly destroy virus-infected cells.D. B-lymphocytes differentiate into plasma cells to produce antibodies.
Q7. Which of the following diseases is caused by a helminth parasite?A. TuberculosisB. PneumoniaC. FilariasisD. Dengue
Q8. Which lymphoid organ is responsible for the maturation of T-lymphocytes?A. SpleenB. LiverC. ThymusD. Bone marrow
Q9. Which of the following is a mode of transmission for ascariasis?A. Inhalation of airborne sporesB. Consumption of contaminated food and waterC. Mosquito biteD. Direct contact with an infected person
Q10. Which organ in the human body acts as a filter for blood-borne pathogens and is a major lymphoid organ?A. LiverB. SpleenC. ThymusD. Lymph nodes