<Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (December 2016) (Learn how and when to remove this template message) </Td> </Tr> <P> Digestive enzymes are a group of enzymes that break down polymeric macromolecules into their smaller building blocks, in order to facilitate their absorption by the body . Digestive enzymes are found in the digestive tracts of animals (including humans) and in the traps of carnivorous plants, where they aid in the digestion of food, as well as inside cells, especially in their lysosomes, where they function to maintain cellular survival . Digestive enzymes of diverse specificities are found in the saliva secreted by the salivary glands, in the secretions of cells lining </P> <Ul> <Li> Proteases and peptidases split proteins into small peptides and amino acids . </Li> <Li> Lipases split fat into three fatty acids and a glycerol molecule . </Li> <Li> Amylases split carbohydrates such as starch and sugars into simple sugars such as glucose . </Li> <Li> Nucleases split nucleic acids into nucleotides . </Li> </Ul> <Li> Proteases and peptidases split proteins into small peptides and amino acids . </Li>

What are the 3 types of enzymes in digestion