Complement shows various biological functions which are listed here below: 1. Immune adherence and opsonization This involves the covalent binding of complement proteins to the surface of microbial membranes. This opsonization or coating by complement proteins promotes adherence of the opsonized microbial components to the cell membranes of phagocytic cells. Phagocytic cells (macrophages, neutrophils) have … Read more
Introduction of Natural Killer Cells Natural killer cells are class of lymphocytes that respond to intracellular microbes by killing the infected cells and by producing macrophage activating cytokines. They comprise about 10% of the lymphocytes in the blood and peripheral lymphoid organs. These cells contain abundant cytoplasmic granules and express characteristic markers but they do … Read more
S.N RBC WBC 1. RBC stands for red blood cells. WBC stands for white blood cells. 2. They are also known as erythrocytes. They are also known as leucocytes. 3. They are small biconcave and non nucleated. They are comparatively larger, amoeboid and nucleated 4. Much more in number. Much less in number. 5. Around … Read more