(a) Fibrinogens are inactive components of blood plasma. Under the action of enzyme dead thrombin they form a clot or coagulum of a network of threads called fibrin in which and damaged elements of blood are trapped.
(b) Globulins are primarily involved in immunity, i.e., defence mechanisms of the body.
(c) Neutrophils are phagocytic cells which destroy foreign organisms entering the body.
(d) Lymphocytes are specialised cells which are responsible for the immune responses in Two major types of lymphocytes, that are involved in this process are B and T- lymphocytes.
