What term describes the death of cells as they complete their life cycle?

What term describes the death of cells as they complete their life cycle?

• A. Necrobiosis
• B. Necrosis
• C. Apoptosis
• D. Autolysis

Answer: (A)

Programmed cell death is the controlled, orderly elimination of cells as part of development and tissue maintenance. The term that describes cells dying as they complete their life cycle is apoptosis. It’s an active, regulated process that allows organisms to remove old or unwanted cells without causing inflammation—the cell undergoes shrinkage, DNA fragmentation, and membrane blebbing, then debris is neatly cleared by phagocytes. This differs from necrosis, which is uncontrolled cell death due to injury and often triggers inflammation because the cell contents spill out. Autolysis refers to tissue breakdown after death caused by lysosomal enzymes, not a normal life-cycle process. Necrobiosis is a degenerative process with preserved tissue structure and isn’t the standard way cells die during the lifecycle. So, apoptosis is the best description of cells dying as part of their normal life cycle.

Programmed cell death is the controlled, orderly elimination of cells as part of development and tissue maintenance. The term that describes cells dying as they complete their life cycle is apoptosis. It’s an active, regulated process that allows organisms to remove old or unwanted cells without causing inflammation—the cell undergoes shrinkage, DNA fragmentation, and membrane blebbing, then debris is neatly cleared by phagocytes.

This differs from necrosis, which is uncontrolled cell death due to injury and often triggers inflammation because the cell contents spill out. Autolysis refers to tissue breakdown after death caused by lysosomal enzymes, not a normal life-cycle process. Necrobiosis is a degenerative process with preserved tissue structure and isn’t the standard way cells die during the lifecycle.

So, apoptosis is the best description of cells dying as part of their normal life cycle.