" The three enzymes produced by the pancreas which continue breaking down proteins into simpler substances.
A. Amylase
B. Trypsin
C. Hydrochloric Acid
D. Chymotrypsin
E. Carboxypeptidases
Choose the correct answer from the options given below:

Correct option is D

The pancreas secretes several enzymes that aid in the digestion of proteins by breaking them down into smaller peptides and amino acids. The three key enzymes involved in this process are:
1. Trypsin: It is released in an inactive form known as trypsinogen, which is activated in the small intestine. Trypsin continues the breakdown of proteins into smaller peptides.
2. Chymotrypsin: Like trypsin, this enzyme is secreted as chymotrypsinogen and becomes activated in the small intestine. It further breaks down peptide bonds in proteins.
3. Carboxypeptidases: These enzymes cleave the peptide bonds at the carboxyl (C-terminal) end of proteins, releasing single amino acids from the peptides​​.
Information Booster:
· Trypsin and chymotrypsin work together to break down proteins into smaller peptides, while carboxypeptidases finish the job by releasing individual amino acids from the peptide chains. This action is crucial for efficient protein digestion and absorption in the small intestine.
Additional Knowledge:
· Amylase: It is not involved in protein digestion but rather in breaking down carbohydrates (starches) into simple sugars.
· Hydrochloric Acid: While not an enzyme, it is produced in the stomach to help denature proteins and activate the enzyme pepsin, but it does not digest proteins itself.