Answer:
Enzymes are used for the breakdown of proteins into amino acids.
Step-by-step explanation:
Enzymes are bio-catalyst that increase the speed of reaction upto many times. Enzymes are specific in nature and can react with a specific substrate (protein).
Protease is the enzyme that acts on the different proteins ( substrate). This enzyme breaks the peptide bonds of proteins and convert them into amino acids.
Hence, the answer is enzyme.