20 Topics.
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What to Study: How does the WHO define health? Remember its three parts. Also understand the other dimensions of health that go beyond the absence of disease.
Asked in UPSC PrelimsUPSC 2021
What to Study: What are the five kinds of pathogen? Be able to tell them apart by cell organisation (prokaryotic or eukaryotic, a cell or no cell, one cell or many) and by how each lives and feeds. Remember one standard example of each. Which of them can multiply only inside a host cell?
Asked in UPSC PrelimsUPSC 1997UPSC 2001
What to Study: Compare antigens and antibodies: molecule types and the binding site on each (epitope and paratope). What is another name for an antibody? Are "antigen" and "immunogen" exact synonyms? Which kinds of molecule can act as antigens? Understand the antibody's heavy and light chains and its variable and constant regions.