query: What enzymes are present in the human digestive system?
passage: Digestive enzyme
Proteases and peptidases split proteins into small peptides and amino acids. Lipases split fat into three fatty acids and a glycerol molecule. Amylases split carbohydrates such as starch and sugars into simple sugars such as glucose. Nucleases split nucleic acids into nucleotides.
passage: Succinate-semialdehyde dehydrogenase
Succinate-semialdehyde dehydrogenase is found in organisms ranging across the tree of life from bacteria to humans. It is important in the degradation of γ-aminobutyric acid in humans, and deficiency of the enzyme causes serious health effects (succinic semialdehyde dehydrogenase deficiency).