Select the Appropriate Description of Apoptosis

Multiple Choice

Select the appropriate description of apoptosis.

A) Apoptosis is regulated by cell surface receptors that signal when a cell has reached its density-dependent limits.
B) During apoptosis, dying cells leak out their contents, including digestive enzymes that also destroy healthy cells.
C) During apoptosis, cellular agents chop up the DNA and fragment the organelles and other cytoplasmic components of a cell.
D) Each cell organelle has protein signals that initiate the breakdown of the organelle's components, which leads to cell death.
E) Apoptosis only occurs in old cells.