Answer:
Apoptosis
Step-by-step explanation:
When a cell has become old or is unwanted due to defect, it self destructs via a programmed cell death procedure called apoptosis. This is essential in balancing the fast replacement of newer cells to those that are old or diseased. It occurs through several biochemical steps. The first thing that happens is blebbing of the cell mebrane (buldging out), the cell then shrinks and the nucleus becomes fragmented releasing its contents. There will be condensation of the cnromatin material and the last step is DNA fragmentation. A cell then becomes dead and is picked up by a macrophage for further breakdown.