Lactase is found in

Which of the following pairs of food components reaches the stomach in humans completely undigested?

Select the correct option for $Amylase$.
$I-$ Acts in the oral cavity at $pH$ $6.8$.
$II-$ Acts in the small intestine at $pH$ $7.8$.
$III-$ Converts polysaccharides into monosaccharides.
$IV-$ $Amylase$ is a hydrolytic enzyme.
$V-$ $Amylase$ also acts as an antibacterial agent.

The end product of fat digestion is

Surgical removal of the gall bladder in human beings would lead to:

Which of the following digests proteins into peptides?