Platelets are anucleated but are composed of organelles. Generally most of these organelles are composed of cytoplastic granules. When stimulated, which one of these granules would be most important in satisfying the metabolic need of the platelet?

Question

Quizplus · Accepted Answer

Dense granules contain high concentrations of ADP and ATP which are crucial for platelet activation and aggregation, and for satisfying the metabolic needs of the platelet during this process. Alpha granules contain various growth factors and clotting factors, but they are not as important for immediate metabolic needs. Lysosomes and coarse granules do not play a significant role in platelet activation and metabolism.

Platelets Are Anucleated but Are Composed of Organelles