The eosinophil secrete all except: (A) Major basic protein, (B) Hydrolytic enzyme, (C) Reactive form of oxygen, (D) Eosinophilic chemotactic factor
Answer is B. Ref Robbins 8/e p54 Hydrolytic enzymes are secreted by lysosomes lysosome (/'laIs@,soUm/) is a membrane-bound organelle found in many animal cells. They are spherical vesicles that contain hydrolytic enzymes that can break down many kinds of biomolecules. A lysosome has a specific composition, of both its membrane proteins, and its lumenal proteins.