Programmed cell death (apoptosis)
A) occurs in cells that have been deprived of essential nutrients.
B) occurs only in cells that have damaged DNA.
C) is a natural process during development.
D) is signaled by the initiation of mitosis.
E) is well controlled in cancer cells.

Question

Quizplus · Accepted Answer

Programmed cell death, or apoptosis, is a natural process that occurs during development. It is necessary for proper tissue formation and the elimination of unnecessary or damaged cells.

Note: None of the other choices are true. Apoptosis can occur in cells that have been deprived of essential nutrients or in cells with damaged DNA, but it is not limited to these conditions. The initiation of mitosis actually signals cell growth and division, rather than programmed cell death. Cancer cells often have dysregulated apoptotic pathways, leading to uncontrolled cell growth and proliferation.

Programmed Cell Death (Apoptosis)