This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 8 Human Health And Disease – Quiz 15 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 8 Human Health And Disease Quiz 15 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Vaccine against polio viruses is an example of A) Auto-immunisation. B) Passive immunisation. C) Active immunisation. D) Simple immunisation. Show Answer Correct Answer: C) Active immunisation. 2. Which one is used as biological control agent of mosquito A) Gambusia. B) Gracelaria. C) Frog. D) Grass carp. Show Answer Correct Answer: A) Gambusia. 3. Transmission of HIV infection generally occurs by A) By sharing infected needles. B) Transfusion of contaminated blood. C) Sexual contact with infected person. D) All of the above. Show Answer Correct Answer: D) All of the above. 4. A mass of undifferentiated cells is called A) Cancer. B) Tumor. C) Malignant. D) Metastasis. Show Answer Correct Answer: B) Tumor. 5. A disesse transmitted through faecal oral route A) Infection caused by streptococcus. B) AIDS. C) Hepatitis B. D) Polio. Show Answer Correct Answer: D) Polio. 6. Auto immunity means ..... A) Protecting cells by self. B) Producing immunity by self. C) Damaging cells self. D) Introducing immunity from outside. Show Answer Correct Answer: C) Damaging cells self. 7. One of the modes of transmission of Rhino viruses causing common cold is inhalation of aerosol droplets released by an infected person when they cough or sneeze. They can also be transmitted by A) Contact with fomites. B) Contact with water contaminated with fecal matter from the infected person. C) Vectors such as Mosquitoes. D) Contact with contaminated soil. Show Answer Correct Answer: A) Contact with fomites. 8. Increased asthmatic attacks in certain seasons are related to: A) Low temperature. B) Hot and humid environment. C) Eating fruits preserved in tin containers. D) Inhalation of seasonal pollen. Show Answer Correct Answer: D) Inhalation of seasonal pollen. 9. The cell-mediated immunity inside the human body is carried out by ..... [NEET 2013] A) T-lymphocytes. B) B-lymphocytes. C) Thrombocytes. D) Erythrocytes. Show Answer Correct Answer: A) T-lymphocytes. 10. How many type of disease? A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: B) 2. 11. A normal gene that codes for proteins that help to regulate cell growth and differentiation and can, due to mutations or increased expression lead to neoplastic transformation of cells, is called as A) Oncogenes. B) Proto-oncogenes. C) V-onc. D) Pseudogene. Show Answer Correct Answer: B) Proto-oncogenes. 12. Which of the following is the bacterial disease in humans?(a) Dysentery(b) Malaria(c) Plague(d) Both (a) & (c) A) A. B) B. C) C. D) D. Show Answer Correct Answer: D) D. 13. Y shaped proteins that may mark pathogens for destruction are A) Antigens. B) T cells. C) Antibodies. D) Neutrophils. Show Answer Correct Answer: C) Antibodies. 14. In higher vertebrates, the immune system can distinguish self cells from non self cells.if this property is lost due to allergic abnormality and it attacks self cells, then it leads to A) Graft rejection. B) Activate immunity. C) Allergic response. D) Auto immune disease. Show Answer Correct Answer: D) Auto immune disease. 15. ..... immunity is when the bodies makes its own antibodies. A) Passive. B) Active. C) Cell mediated. D) False. Show Answer Correct Answer: B) Active. 16. Incubation period of typhoid is? A) 1 to 3weeks. B) 2 days. C) 3 days. D) None. Show Answer Correct Answer: A) 1 to 3weeks. 17. PCR is test for: A) HIV. B) Cancer. C) Tuberculosis. D) Cholera. Show Answer Correct Answer: A) HIV. 18. Opium is extracted from(a) Atropa belladona(b) Papaver somniferum(c) Erythroxylum coca(d) Cannabis sativa A) A. B) B. C) C. D) D. Show Answer Correct Answer: B) B. 19. Humans have acquired immune system that produces antibodies to neutralize pathogens. Still innate immune system is present at the time of birth because it A) Provides passive immunity. B) Is very specific and uses different macrophages. C) Produces memory cells for mounting fast secondary response. D) Has natural killer cells which can phagocytose and destroy microbes. Show Answer Correct Answer: D) Has natural killer cells which can phagocytose and destroy microbes. 20. Select the correct statement about diseases and immunization ..... A) If due to some reason, B and T-lymphocytes are damaged the body will not produce antibody against a pathogen. B) Injection of dead/inactivated pathogens causes passive immunity. C) Certain protozoans have been used in mass production of hepatitis-B vaccine. D) Injection of snake antivenom against snake bite is an example of active immunization. Show Answer Correct Answer: A) If due to some reason, B and T-lymphocytes are damaged the body will not produce antibody against a pathogen. 21. Which disease is diagnosed by Western Blot test? A) Cancer. B) AIDS. C) Malaria. D) Pneumonia. Show Answer Correct Answer: B) AIDS. 22. Which of the following organs is not involved in the generation of immune response? A) Brain. B) Lymph nodes. C) Spleen. D) Thymus. Show Answer Correct Answer: A) Brain. 23. Antibodies present in colostrum which protect the new born from certain diseases is of(a) IgG type(b) IgA type(c) IgD type(d) IgE type. A) A. B) B. C) C. D) D. Show Answer Correct Answer: B) B. 24. Exo erythrocutic schizogony of plasmodium takes place in A) RBC. B) Leucocytes. C) Stomach. D) Liver. Show Answer Correct Answer: D) Liver. 25. Lysozyme kills by destroying A) Cell walls. B) Mitochondrial enzymes. C) Lipid bilayers. D) The machinery for DNA replication. Show Answer Correct Answer: A) Cell walls. ← PreviousNext →Related 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 7Class 12 Biology Chapter 8 Human Health And Disease Quiz 8Class 12 Biology Chapter 8 Human Health And Disease Quiz 9Class 12 Biology Chapter 8 Human Health And Disease Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books