This quiz works best with JavaScript enabled. Home > Cbse > Class 12 > Science > Biology > Class 12 Biology Chapter 8 Human Health And Disease – Quiz 7 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 8 Human Health And Disease Quiz 7 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following glands is large sized at birth but reduces in size with ageing?(a) Pineal(b) Pituitary(c) Thymus(d) Thyroid A) C. B) D. C) A. D) B. Show Answer Correct Answer: A) C. 2. Which antibody is first to be released into blood following an infection? A) IgM. B) IgG. C) IgD. D) IgA. Show Answer Correct Answer: A) IgM. 3. Vaccines and immune work on the principle of ..... A) Memory. B) Heredity. C) Defence. D) Attacking. Show Answer Correct Answer: A) Memory. 4. Due to genetic and other unknown reasons the body attacks self cells, it is known as A) Auto immunity. B) Immunity. C) Acquired immunity. D) Innate immunity. Show Answer Correct Answer: A) Auto immunity. 5. Sporogony of malarial parasite occurs in A) Stomach wall of mosquito. B) Salivary glands of mosquito. C) RBCs of man. D) Liver of man. Show Answer Correct Answer: A) Stomach wall of mosquito. 6. Which of the following has been completely eradicated? A) HIV. B) Malaria. C) Smallpox. D) Typhoid. Show Answer Correct Answer: C) Smallpox. 7. Colostrum secreted by mother during the initial days of lactation has abundant A) Antibodies IgA. B) Antibodies IgM. C) Antibodies IgG. D) Antibodies IgE. Show Answer Correct Answer: A) Antibodies IgA. 8. The role of Gambusia in disease control is ..... A) It is primary priducer. B) It preys on eggs of vectors. C) It is decomposer. D) It eliminates oxygen. Show Answer Correct Answer: B) It preys on eggs of vectors. 9. Infectious diseases are diseases caused by an organism such as a virus or a bacterium, which is called a: A) Pathogen. B) Toxicant. C) Pandemic. D) Carcinogen. Show Answer Correct Answer: A) Pathogen. 10. Chill and high fever recurring every 3-4 hours in a patient. Which of the following statement related to this event is incorrect? A) Release of Haemozoin causes chill and fever. B) Rupture of RBC is associated with release of haemozoin. C) Parasites initially multiply in liver cells then attack red blood cells. D) The disease is Typhoid. Show Answer Correct Answer: D) The disease is Typhoid. 11. Disease tetanus is a: A) Vector born disease. B) Soil born disease. C) Water born disease. D) Air born disease. Show Answer Correct Answer: B) Soil born disease. 12. Which of the following is the cancer of blood? A) Sarcoma. B) Lymphoms. C) Leukemia. D) None of these. Show Answer Correct Answer: C) Leukemia. 13. The most abundant class of immunoglobulins (Igs) in the body is: A) IgG. B) IgM. C) IgA. D) IgM. Show Answer Correct Answer: A) IgG. 14. Which of the following immune responses is responsible for rejection of kidney graft? A) Auto-immune response. B) Cell-mediated immune response. C) Inflammatory immune response. D) Humoral immune response. Show Answer Correct Answer: B) Cell-mediated immune response. 15. Which one is vector of filariasis A) House fly. B) Bed bug. C) Male mosquito. D) Female mosquito. Show Answer Correct Answer: D) Female mosquito. 16. Discovery of blood circulation was done by ..... A) William Stark. B) William Harvey. C) Harvey stark. D) None of these. Show Answer Correct Answer: B) William Harvey. 17. How do vaccines help the immune system fight diseases? A) Vaccines help the immune system by training it to recognize and fight specific pathogens. B) Vaccines weaken the immune system by exposing it to diseases. C) Vaccines directly cure diseases without immune response. D) Vaccines only provide temporary relief from symptoms. Show Answer Correct Answer: A) Vaccines help the immune system by training it to recognize and fight specific pathogens. 18. The site where lymphocytes interact with antigens and proliferate to become effector cells are(a) spleen and lymph nodes(b) bone marrow and thymus(c) Peyer's patches and tonsils(d) both (a) and (c). A) A. B) C. C) D. D) B. Show Answer Correct Answer: C) D. 19. How many types of plasmodium of human species? A) 3. B) 4. C) 5. D) None. Show Answer Correct Answer: B) 4. 20. Which of the following is a bacterial disease? A) Cancer. B) Mumps. C) Dangue. D) Typhoid. Show Answer Correct Answer: D) Typhoid. 21. Carcinoma arise from A) Epithelial cells. B) Bone Marrow. C) Lung Cells. D) None of the above. Show Answer Correct Answer: A) Epithelial cells. 22. Identify the first line of defense in humans A) Skin. B) Mucus coating. C) Lysozyme secretion from eyes. D) All of the above. Show Answer Correct Answer: D) All of the above. 23. The pathogen Microsporum responsible for ringworm disease in humans belongs to the same kingdom as that of A) Ascaris a roindworm. B) Taenia, a tapeworm. C) Wuchereriaa filarial worm. D) Rhizopus, mould. Show Answer Correct Answer: D) Rhizopus, mould. 24. Identify the immunoglobulin involved in allergic response A) IgA. B) IgE. C) IgD. D) IgG. Show Answer Correct Answer: B) IgE. 25. Pathogens cause ..... A) Disease. B) Allergy. C) Deficiency disease. D) Mutation. Show Answer Correct Answer: A) Disease. 26. Morphine is used as A) Sedative. B) Pain killer. C) Sedative and pain killer both. D) Local anesthesia. Show Answer Correct Answer: C) Sedative and pain killer both. 27. Cirrhosis of liver is caused due to chronic intake of A) Opium. B) Nicotine. C) Cocaine. D) Alcohol. Show Answer Correct Answer: D) Alcohol. 28. The substance given to cancer patients in order to activate their immune system and destroy the tumour is A) Alpha-interferon. B) Interleukin. C) Interleukin. D) Histamine. Show Answer Correct Answer: A) Alpha-interferon. 29. The antibody which can cross placental barrier is. A) IgE. B) IgA. C) IgM. D) IgG. Show Answer Correct Answer: D) IgG. 30. Which of the following is the bacterial disease in humans? A) Dysentery. B) Malaria. C) Plague. D) Both (a) & (c). Show Answer Correct Answer: D) Both (a) & (c). 31. What is the importance of hygiene in preventing disease spread? A) Hygiene is crucial in preventing disease spread as it minimizes exposure to pathogens. B) Hygiene practices are irrelevant in public health. C) Hygiene has no effect on disease transmission. D) Hygiene is only important for personal appearance. Show Answer Correct Answer: A) Hygiene is crucial in preventing disease spread as it minimizes exposure to pathogens. 32. Drug called 'Heroin' is synthesized by A) Glycosylation of morhphne. B) Acetylation of morhphne. C) Methylation of morhphne. D) Nitration of morhphne. Show Answer Correct Answer: B) Acetylation of morhphne. 33. Diseases of human being caused by protozoan parasites areA. amoebiasisB. malariaC. trypanosomiasisD. typhoid A) A, B, C, D. B) A, B, C. C) A, B. D) A, C, D. Show Answer Correct Answer: B) A, B, C. 34. The response to an infection. Causes the area to redden, swell, and feel warm. A) Mucus. B) Dilation. C) Inflammation. D) Fever. Show Answer Correct Answer: C) Inflammation. 35. What is the role of a balanced diet in maintaining health? A) A balanced diet can be ignored if you exercise regularly. B) A balanced diet is only important for weight loss and not overall health. C) A balanced diet is crucial for maintaining health by providing essential nutrients and reducing disease risk. D) A balanced diet is primarily about avoiding all fats and sugars. Show Answer Correct Answer: C) A balanced diet is crucial for maintaining health by providing essential nutrients and reducing disease risk. 36. Plasmodium is responsible for ..... disease A) Dengue. B) Cholera. C) Rat flea. D) Malaria. Show Answer Correct Answer: D) Malaria. 37. If a person shows production of interferons in his body, the chances are that he has got an infection of A) Influenza. B) Tetanus. C) Typhoid. D) Malaria. Show Answer Correct Answer: A) Influenza. 38. What are some common diseases caused by viruses? A) Tuberculosis. B) Malaria. C) Influenza, common cold, HIV/AIDS, hepatitis, COVID-19. D) Diabetes. Show Answer Correct Answer: C) Influenza, common cold, HIV/AIDS, hepatitis, COVID-19. 39. Which of the following is involved in allergic reactions? A) IgA and mast cells. B) IgG and basophils. C) IgG and mast cells. D) IgE and mast cells. Show Answer Correct Answer: D) IgE and mast cells. 40. Passive immunity is provided through A) Endogenous supply of antibodies. B) Endogenous supply of antigens. C) Exogenous supply of antigens. D) Exogenous supply of antibodies. Show Answer Correct Answer: D) Exogenous supply of antibodies. 41. Viral DNA during infection by a Retro virus is produced by A) Restriction Endonuclease. B) Gyrase. C) Reverse Transcriptase. D) DNA Polymerase. Show Answer Correct Answer: C) Reverse Transcriptase. 42. How is opium obtained? A) Thea Sinensis. B) Coffea arabica. C) Papaver somniferum. D) Oryza sativa. Show Answer Correct Answer: C) Papaver somniferum. 43. Heavy chain and light chain in an antibody joint by A) Phosphate di ester bonds. B) Disulfide bonds. C) Peptide bond. D) None of the above. Show Answer Correct Answer: B) Disulfide bonds. 44. Pathogens can be spread by ..... A) Skin contact. B) Bodily fluids. C) Airborne particles. D) All of the above. Show Answer Correct Answer: D) All of the above. 45. Salmonella typhi causes A) Pneumonia. B) Malaria. C) Typhoid. D) Amoebiasis. Show Answer Correct Answer: C) Typhoid. 46. Melanoma is a type of cancer that develops from ..... A) Granulocytes. B) Melanocytes. C) Adipocyte. D) None of the above. Show Answer Correct Answer: B) Melanocytes. 47. Immune system retain the memory of which response in vaccination process A) Passive immunization response. B) Primary immune response. C) Secondary immune response. D) All the above. Show Answer Correct Answer: B) Primary immune response. 48. Which one is correct for amoebiosis A) Inflammation of the lymphatic vessels. B) Internal bleeding, anaemia, blockage of intestinal passage. C) Constipation, abdominal pain, cramps, stools with excess mucous. D) Periodic recurrence of chill and fever due to haemozoin. Show Answer Correct Answer: C) Constipation, abdominal pain, cramps, stools with excess mucous. 49. Cells of immune system that cause pore formation in the antigen are A) Suppressor T-cells. B) B-cells. C) Helper T-cells. D) Killer T-cells. Show Answer Correct Answer: D) Killer T-cells. 50. Morphine is extracted from the latex of A) Atropa belladona. B) Papaver somniferum. C) Cannabis sativa. D) Erythroxylum coca. Show Answer Correct Answer: B) Papaver somniferum. 51. Anamnestic response is generated by A) Second interaction of pathogen with body. B) No response against pathogen. C) Response against self cells. D) First interaction of pathogen with body. Show Answer Correct Answer: A) Second interaction of pathogen with body. 52. In our body, the first line of defence consists of skin and mucous membrane. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 53. Cocaine is commonly called as(a) smack(b) coke(c) crack(d) both(b)&(c) A) B. B) D. C) C. D) A. Show Answer Correct Answer: B) D. 54. Osteoporosis is an example of A) Life style disease. B) Infectious disease. C) Non infectiuos disease. D) None of the above. Show Answer Correct Answer: C) Non infectiuos disease. 55. Tuberculosis, Zika fever and tinea are examples of infectious diseases. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 56. What is the function of antigen? A) Triggers the immune system. B) Is used as an antidote to the poison. C) Kills harmful bacteria. D) Lowers body temperature. Show Answer Correct Answer: A) Triggers the immune system. 57. Common cold is caused by ..... A) Rhino viruses. B) Retro viruses. C) Pmv. D) Hiv. Show Answer Correct Answer: A) Rhino viruses. 58. Humoral immunity is associated with(a) T-cells(b) B-cells(c) macrophages(d) both (a) and (b) A) B. B) C. C) D. D) A. Show Answer Correct Answer: A) B. 59. What is metastasis? A) Rapid cell division of Cancer cells. B) Regeneration of cancerous cells. C) Spreading of cancerous cells. D) All of the above. Show Answer Correct Answer: C) Spreading of cancerous cells. 60. Which one of the following is not a contagious disease? A) Cancer. B) Common cold. C) Malaria. D) Typhoid. Show Answer Correct Answer: A) Cancer. ← PreviousNext →Related QuizzesScience QuizzesClass 12 QuizzesClass 12 Biology Chapter 8 Human Health And Disease Quiz 1Class 12 Biology Chapter 8 Human Health And Disease Quiz 2Class 12 Biology Chapter 8 Human Health And Disease Quiz 3Class 12 Biology Chapter 8 Human Health And Disease Quiz 4Class 12 Biology Chapter 8 Human Health And Disease Quiz 5Class 12 Biology Chapter 8 Human Health And Disease Quiz 6Class 12 Biology Chapter 8 Human Health And Disease Quiz 8Class 12 Biology Chapter 8 Human Health And Disease Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books