P.B.B.Sc.F.Y-MICROBIOLOGY-PAPER SOLUTION-SAURASHTRA UNIVERSITY-GUJARAT-2017 SECTION-I 1 Long Essay: (any two) 2×10 = 20 (1) Define and Classify antibodies. Explain different antigen antibody Reaction. 10 MARKS ANSWER :- Define Antibodies Antibodies, also known as immunoglobulins, are Y-shaped proteins produced by the immune system in response to the presence of foreign substances (antigens) such as viruses, bacteria, or toxins. Antibodies play a crucial role in the immune response by recognizing and binding to