Answer:
This question is incomplete, the complete question is as follows:
Exocrine pancreatic insufficiency (EPI) is a condition characterized by lack of the exocrine pancreatic enzymes, resulting in the failure to digest food properly (especially fats). A healthy diet is important for everyone, but especially for people with EPI. One treatment called pancreatic enzyme replacement therapy, or PERT, replace the digestive enzyme that your pancreas isn't producing anymore. What function does PERT replace?
The answer is D. (It serves as a catalyst and lowers the activation energy)
Explanation:
According to this question, pancreatic enzyme replacement therapy (PERT) is a treatment for people with Exocrine pancreatic insufficiency (EPI) condition i.e. individuals that cannot produce pancreatic enzymes that aid in digestion. PERT replaces the digestive enzymes that ought to be produced by the pancreas.
Ideally, enzymes are proteinous molecules that serve as biological catalyst in living systems. Catalysts speedens the rate of a reaction by lowering the activation energy. Since PERT is performing the function of the pancreatic enzyme in this case, it means that PERT is SERVING AS A CATALYST BY LOWERING THE ACTIVATION ENERGY OF THE REACTION.
