Understanding the Key Processes in Cellular Biology: Apoptosis, Necrosis, Cellular Senescence, and Terminal Differentiation

Programmed cell death is calledA. NecrosisB. ApoptosisC. Cellular senescenceD. Terminal differentiation

The correct answer is B

The correct answer is B. Apoptosis.

Apoptosis is a programmed cell death process that occurs naturally as a part of cellular development and maintenance. It involves a series of tightly regulated molecular events that lead to controlled self-destruction of cells.

Necrosis, on the other hand, is an uncontrolled and accidental cell death that occurs due to external factors such as injury, infection, or lack of oxygen. It is characterized by cell swelling, inflammation, and the release of cell contents into the surrounding tissue.

Cellular senescence refers to a state of permanent growth arrest that cells enter into after a certain number of divisions, often to prevent the development of cancer. Senescent cells are still alive but no longer actively divide or function in the same way as before.

Terminal differentiation refers to the process by which a cell becomes specialized and takes on a specific mature function. It usually involves changes in gene expression and the acquisition of unique morphological and functional characteristics.

In summary, apoptosis is the programmed cell death process, whereas necrosis is accidental cell death. Cellular senescence is a state of permanent growth arrest, and terminal differentiation is the process of a cell becoming specialized.

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