Details of Human Health and Disease Biology Quiz for NEET
| No. of Questions in Quiz | 36 with Explanation |
| Time for each Questions | 60 Seconds |
| Attempts Allowed | Unlimited |
| Available | Always |
| Pass Percentage | 70 % |
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#1. Drug called ‘Heroin’ is synthesized by
Heroin, commonly called smack and is chemically diacetylmorphine which is synthesized by acetylation of morphine.
#2. Which of the following immune responses is responsible for rejection of kidney graft?
The body is able to differentiate self and nonself and the cell-mediated response is responsible for graft rejection.
#3. Identify the correct pair representing the causative agent of typhoid fever and the confirmatory test for typhoid.
Salmonella typhi is the causative agent. Confirmatory test = Widal test, it’s based on antigen antibody reaction.
#4. Which of the following is not an autoimmune disease?
Rheumatoid arthritis is an autoimmune disorder in which antibodies are produced against the synovial membrane and cartilage.
Vitiligo causes white patches on skin also characterised as autoimmune disorder.
Psoriasis is a skin disease that causes itchy or sore patches of thick red skin and is also autoimmune whereas Alzheimer’s disease is due to deficiency of neurotransmitter acetylcholine.
#5. In which disease does mosquito transmitted pathogen cause chronic inflammation of lymphatic vessels?
Elephantiasis is caused by roundworm, Wuchereria bancrofti and it is transmitted by Culex mosquito.
#6. Which part of poppy plant is used to obtain the drug “Smack”?
‘Smack’ also called as brown sugar/Heroin is formed by acetylation of morphine. It is obtained from the latex of unripe capsule of Poppy plant.
#7. Transplantation of tissues/organs fails often due to non-acceptance by the patient's body. Which type of immune-response is responsible for such rejections?
Non-acceptance or rejection of graft or transplanted tissues/organs is due to cell mediated immune response.
#8. MALT constitutes about ___________ percent of the lymphoid tissue in human body
MALT is Mucosa Associated Lymphoid Tissue and it constitutes about 50 percent of the lymphoid tissue in human body.
#9. Which of the following sets of diseases is caused by bacteria?
Cholera is caused by a bacterium Vibrio cholerae and tetanus is caused by a bacterium Clostridium tetani.
#10. Which of the following is correct regarding AIDS causative agent HIV?
Causative agent of AIDS is HIV which is enveloped virus that contains two identical molecules of ssRNA and two molecules of reverse transcriptase.
#11. Which of the following statements is not true for cancer cells in relation to mutations?
Cancerous cells have high telomerase activity. Telomerase inhibitors are used in cancer treatment.
#12. Antivenom injection contains preformed antibodies while polio drops that are administered into the body contain
Oral polio vaccine consists of attenuated pathogen.
#13. In higher vertebrates, the immune system can distinguish self-cells and non-self. If this property is lost due to genetic abnormality and it attacks self-cells, then it leads to
In autoimmune diseases, the immune cells are unable to distinguish between self cells and non-self cells and attack self cells.
#14. Depletion of which gas in the atmosphere can lead to an increased incidence of skin cancers
Ozone is found in the upper part of the atmosphere called stratosphere and it acts as a shield absorbing ultraviolet radiation from sun and so its depletion can lead to incidence of skin cancers.
#15. Grafted kidney may be rejected in a patient due to
Cell mediated immunity (CMI) is responsible for graft rejection.
#16. If you suspect major deficiency of antibodies in a person, to which of the following would you look for confirmatory evidence?
Antibodies are present in serum. They are glycoproteins and also called gammaglobulins synthesized in lymph nodes.
#17. Which of the following immunoglobulins constitutes the largest percentage in human milk?
IgA is present in external body secretion including colostrum and milk. They provide naturally acquired passive immunity to child.
#18. Which of the following viruses is not transferred through semen of an infected male?
Chikungunya is caused by Arbovirus and transmitted through the bite of Aedes mosquito.
#19. HIV that causes AIDS, first starts destroying
Macrophages are HIV factory, not destroyed by AIDS virus. HIV destroys Helper-T-cells, because after replication the virus is released by lysis of the cell.
#20. Which of the following is not one of the prime health risks associated with greater UV radiation through the atmosphere due to depletion of stratospheric ozone?
Liver cancer can be caused due to aflatoxin (released by Aspergillus fungus), Vinyl chloride but UV-rays do not cause cancer of liver.
#21. The active form of Entamoeba histolytica feeds upon
Entamoeba histolytica is present in the colon, feeds on mucosa and submucosa and can also phagocytose RBCs.
#22. Which one of the following fungi contains hallucinogens?
Amanita muscaria is noted for its hallucinogenic properties, with its main psychoactive constituent being the compound muscimol.
#23. At which stage of HIV infection does one usually show symptoms of AIDS?
Fall in number of helper T-lymphocytes causes lowering of immunity.
#24. Infection of Ascaris usually occurs by
#25. The cell-mediated immunity inside the human body is carried out by
#26. Common cold differs from pneumonia in, that
Pneumonia pathogen infects alveoli whereas the common cold affects nose and respiratory passage but not the lungs.
#27. Widal Test is carried out to test
#28. Cirrhosis of liver is caused by the chronic intake of
With continued alcohol intake, there is destruction of hepatocytes and fibroblasts (cells which form fibres) and stimulation of collagen protein formation. This leads to Cirrhosis (liver damage from a variety of causes/ replacement of liver cells by fibrosis and lumps that occur due to attempted repair of damaged tissue) of liver.
#29. Which one of the following is not a property of cancerous cells whereas the remaining three are?
They do not show contact inhibition. Contact inhibition is a properly of normal cells in which dividing cells when in contact with other cells are inhibited for their uncontrolled growth.
#30. Motile zygote of Plasmodium occurs in
Gamete formation starts in human RBC’s but rest process continues in Anopheles (female) from mouth gametes enters into stomach and reproduce sexually to produce zygote.
#31. Which one of the following acts as a physiological barrier to the entry of microorganisms in human body?
#32. Where will you look for the sporozoites of the malarial parasite?
Salivary glands of infected female Anopheles mosquito contains sporozoites.
Life cycle of malaria takes place in liver and RBC of human not in spleen.
#33. Select the correct statement with respect to diseases and immunisation
#34. Common cold is not cured by antibiotics because it is
Antibiotics are taken against bacterial infections not against viral infections. Common cold is an infectious disease.
#35. Select the correct statement from the ones given below:
#36. Ringworm in humans is caused by
Microsporum, Trichophyton, Epidermophyton are fungi causing ring worm.
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