Final answer:
Caspases are proteolytic enzymes that execute the death signal in a process called apoptosis by cleaving numerous cellular proteins. They cleave target proteins C-terminal to aspartate residues.
Step-by-step explanation:
Function of Caspase: Caspases are proteolytic enzymes that execute the death signal in a process called apoptosis, by cleaving numerous cellular proteins. They play a crucial role in regulating programmed cell death in plants and animals.
Substrate + enzymatic activity: The active site cysteine of caspases cleaves target proteins C-terminal to aspartate residues.