Q1. Which of the following is a major symptom of scabies?A. Skin itching and rashesB. Fever and chillsC. Severe coughD. Paralysis
Q2. Which of the following statements about immunoglobulin IgA is incorrect?A. IgA is found in mucosal secretions like saliva and tears.B. IgA provides protection at mucosal surfaces.C. IgA is the most abundant antibody in the bloodstream.D. IgA helps prevent pathogen entry at mucosal surfaces.
Q3. Which of the following statements about allergic reactions is incorrect?A. Allergic reactions involve the release of histamine.B. Mast cells play a major role in allergic reactions.C. IgE antibodies are involved in allergic responses.D. Allergic reactions are caused by bacterial infections.
Q4. Which hormone stimulates the production of white blood cells?A. ErythropoietinB. ThymosinC. InsulinD. Glucagon
Q5. Which of the following diseases is NOT transmitted through contaminated water?A. CholeraB. TyphoidC. DengueD. Amoebiasis
Q6. Which enzyme helps the HIV virus to integrate its genetic material into the host DNA?A. DNA polymeraseB. Reverse transcriptaseC. LigaseD. RNA polymerase
Q8. Plasmodium, the causative agent of malaria, is transmitted by:A. Male Anopheles mosquitoB. Female Anopheles mosquitoC. HouseflyD. Flea
Q9. Which of the following statements about antibodies is correct?A. Antibodies are produced by plasma cells.B. Antibodies directly kill pathogens.C. Antibodies are part of the innate immune system.D. Antibodies cannot bind to antigens.
Q10. Which of the following is a key function of interferons?A. Killing bacteria directlyB. Preventing viral replicationC. Increasing red blood cell productionD. Breaking down food in the stomach