Alpha granules of platelets contain all Except: (A) Fibronectin, (B) Platelet factor-4, (C) Platelet-derived growth factor, (D) Serotonin
Answer is D. Alpha granules contain P.Selectin, Fibrinogen, Coagulation factor V, VWF, Fibronectin, Platelet factor 4, PDGF, TGF bDelta granules contains ADP, ATP, ionized Ca, Serotonin, EpinephrineReference: Robbins and Cotran Pathologic Basis of Disease; 9th edition; Volume I; Page no: 117