Name three different glands associated with the digestive system in humans. Also name their secretions.

Explanation

Three glands associated with the digestive system are as follows:
(i) Salivary glands in the mouth produce saliva. Saliva contains an enzyme called salivary amylase which digests the starch present in food into sugar.
(ii) Liver is the largest gland which secretes bile and pours its secretion in the duodenum (part of the small intestine). Bile makes the acidic food coming from the stomach alkaline so that pancreatic enzymes can act on it. Bile salts also break the fats present in the food into small globules.
(iii) Pancreas is also a large gland which secretes pancreatic juice into the duodenum.
Pancreatic juice contains
`*` pancreatic amylase which breaks down the starch.
`*` trypsin digests the protein.
`*` lipase which breaks down the emulsified fats.