$A$ rabbit eats a lot of gram. Then its digestion starts in

Describe the process of digestion occurring in the stomach.

Match the enzymes in Column $I$ with their products in Column $II$:

Column $I$	Column $II$
$1$. Amylase	$a$. Coagulated milk protein
$2$. Trypsin	$b$. Dipeptides
$3$. Chymotrypsin	$c$. Disaccharides
$4$. Rennin	$d$. Polypeptides

Choose the correct answer from the following options.

$A$ newborn baby is fed entirely on mother's milk,which is white in color. However,the stool passed by the baby is yellowish. What is the reason for this yellow color?

If for some reason the parietal cells of the gut epithelium become partially non-functional,what is likely to happen?

Definition / Explanation :
$(1)$ Emulsification