Phagolysosomal-enzymatic digestion occurs due to: (A) Protease, (B) MPO (Myeloperoxidase), (C) Oxidase, (D) All
Answer is B. Ans. b (MPO/Myeloperoxidase)The exogenous antigens, such as proteins synthesized by bacteria are ingested into the cell through cellular processes including endocytosis and phagocytosis. Then the antigens are hydrolyzed by hydrolytic enzymes like myeloperoxidase in the phagocytes, and the peptides are retained in an endolysosome or phagolysosome.