Answer true or false. Correct false statements by rewriting them completely 2. 1 Saliva is the digestive juice which is secreted in the mouth and which acts on the sucrose. 2.2. Pepsin is the enzyme that is secreted in the stomach and acts on peptides in an acidic environment. 23. Pancreatic amylase is the enzyme that acts on starch in the large intestine 24 Intestinal trypsin is a peptidase which acts in a basic medium 2.5 Peptidase is an enzyme that digests proteins into peptides