Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEET2018ZoologyHuman Health and DiseasesActual

Which of the following is involved in passive immunity?

Options

  1. AIg A
  2. BIgE
  3. ClgM
  4. DIgD

Correct answer

A. Ig A

Step-by-step solution

IgA antibody is involved in passive immunity. This type of immunity is produced by a donor other than the infected person or an animal. It is short lived. Human colostrum (Mother's first milk) is rich in IgA antibodies. It provides natural passive immunity to the infant till the age of three months.

Practice Human Health and Diseases on Quantrex Academy →

More from Human Health and Diseases

Which of the following is used as an effective sedative and painkiller for treating post-surgery patients ? 2026Colostrum, secreted by mother during initial days of lactation, is abundant in __________. 2026Which of the following are secondary lymphoid organs ? (a) Bone marrow (b) Tonsils (c) Spleen (d) Thymus Choose the correct answer from the options given below : 2026The following are the stages of life cycle of Plasmodium . Arrange the stages in the proper order. A. The parasites reproduce asexually in RBCs, bursting the cells. B. The parasite 2026Match List I with List II : List I (Drug) List II (Effect) A. Nicotine I. Causes sense of euphoria and increased energy B. Morphine II. Stimulates adrenal gland to release catechol 2026Which of the following statements is correct about Plasmodium ? 2026Which of the following type of immunity is present at the time of birth and is a non-specific type of defence in the human body? 2025Neoplastic characteristics of cells refer to : A. A mass of proliferating cell B. Rapid growth of cells C. Invasion and damage to the surrounding tissue D. Those confined to origin 2025 Full Human Health and Diseases list All NEET PYQs