Hydrochloric acid is necessary in the stomach for the conversion of pepsinogen into its active protein-digesting form called ________.

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Hydrochloric acid triggers the conversion of pepsinogen into its active form called pepsin, which is responsible for the digestion of proteins. Rennin is an enzyme that works on milk proteins and is primarily found in infants. Amylase is an enzyme that works on carbohydrates and is found in the saliva and pancreas. Peptidase is an enzyme that works on small protein fragments and is found in a variety of tissues.

Hydrochloric Acid Is Necessary in the Stomach for the Conversion