Which of the following cell organelles is involved in apoptosis?

The Mitochondria play a vital and central regulatory role in apoptosis (programmed cell death), specifically through the intrinsic (mitochondrial) pathway. Upon receiving apoptotic signals, the outer mitochondrial membrane becomes permeable, causing the release of pro-apoptotic proteins such as Cytochrome c into the cytosol, which subsequently activates the caspase cascade leading to cell death.