Bile helps in

The salivary amylase shows maximum digestive action at pH . . . . . . .

Describe the enzymatic action on fats in the duodenum.

Select the correct statements regarding the stomach and gastric juice.
$I-$ The stomach stores food for $4$ to $5$ hours.
$II-$ The food mixes with acidic gastric juice to form chyme.
$III-$ The $pH$ of gastric juice is $1.8$.
$IV-$ Gastric glands secrete small amounts of lipases.

Protein digesting enzyme pepsin is secreted in . . . . . . part of the digestive system.

Digestion of protein is completed in