<prompt> Well-organized internally programmed death of a cell:NecrobiosisApoptosisNecrosisOncosis  <response>: Ans. b Apoptosis. Ref. Textbook of Pathology by Harsh Mohan 4th36; Robbins Pathology 6th2, 4, 18 Well-organized and internally programmed death of a cell is known as apoptosis. The prelethal changes preceding necrotic cell death characterized by cell swelling is known as oncosis. Necrosis is a type of cell death after exogenous stimuli, characterized by cell swelling, rupture, denaturation and coagulation of cytoplasmic proteins and breakdown of cell organelles. 