NEET Biology: Human Health & Disease Practice Questions

15 questions with answers and step-by-step solutions. Tap any question to see the full worked solution.

  1. Q1.
    The substance produced by virus-infected cells that protects other cells from further viral infection is called:
    Easy
  2. Q2.
    Which antibody is produced in primary response during an infection?
    Easy
  3. Q3.
    Which organ is known as the primary lymphoid organ where T-lymphocytes mature?
    Easy
  4. Q4.
    Which of the following diseases is caused by a protozoan parasite?
    Easy
  5. Q5.
    Which of the following is a common symptom of malaria?
    Easy
  6. Q6.
    The secondary immune response is characterized by a rapid increase in the concentration of which antibody isotype?
    Medium
  7. Q7.
    Which of the following diseases is transmitted by the bite of the female Anopheles mosquito?
    Medium
  8. Q8.
    Which drug is obtained from the dried latex of the poppy plant Papaver somniferum?
    Medium
  9. Q9.
    Which of the following cells are primarily responsible for the cell-mediated immune response in humans?
    Medium
  10. Q10.
    Which of the following is a characteristic feature of malignant tumors compared to benign tumors?
    Medium
  11. Q11.
    Which cytokine is primarily responsible for the differentiation of naive CD4 T cells into the Th1 subset, which is crucial for cell-mediated immunity?
    Hard
  12. Q12.
    In the context of HIV infection, which of the following best describes the mechanism by which the virus evades the host immune system during the clinical latenc
    Hard
  13. Q13.
    In the context of hypersensitivity reactions, which type is characterized by the formation of immune complexes that deposit in tissues, leading to complement ac
    Hard
  14. Q14.
    Which of the following statements accurately describes the role of the complement system in the innate immune response against bacterial pathogens?
    Hard
  15. Q15.
    During the process of V(D)J recombination in B cell development, which enzyme is primarily responsible for the introduction of double-strand breaks at the recom
    Hard

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