Q
do enzymes for amino acid digestion come from the liver
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The enzymes responsible for amino acid digestion do not originate from the liver but primarily from the pancreas and the cells lining the small intestine. The digestive process begins in the stomach, where proteins are broken down by pepsin, an enzyme produced by gastric cells. However, the bulk of protein digestion occurs in the small intestine. Here, pancreatic enzymes such as trypsin and chymotrypsin play crucial roles in breaking down proteins into smaller peptides and individual amino acids. These enzymes are synthesized and secreted by the exocrine cells of the pancreas. Additionally, enterokinase, an enzyme produced by the cells lining the small intestine, activates trypsinogen (an inactive form of trypsin) into its active form. While the liver does not produce enzymes specifically for amino acid digestion, it plays a vital role in metabolizing and detoxifying these amino acids once they are absorbed into the bloodstream. It also synthesizes bile, which helps in the digestion and absorption of fats. For optimal protein digestion and amino acid absorption, both the pancreas and the small intestine must function correctly.
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