Vitamin $A$ is synthesized from carotene in the ...... .

Which of the following statements is incorrect regarding the human digestive system?

We feel sleepy just after taking meals because

Give scientific reasons:
$(1)$ Food tastes sweet after chewing.
$(2)$ Excretory substances are seen in bile juice.

Read the following statements thoroughly and identify whether they are true or false. Choose the right option accordingly.
$I.$ Bile is produced and stored in the liver and gall bladder,respectively.
$II.$ Common bile duct is the fusion of the right and left hepatic duct.
$III.$ Hepato-pancreatic duct opens into the proximal part of the small intestine.
$IV.$ Pancreas consists of two parts,exocrine and endocrine.
$V.$ Pepsinogen,a secretion of chief cells,is activated by hydrochloric acid.
$VI.$ Peptides are converted into dipeptides with the action of carboxypeptidase.

Match Column $I$ with Column $II$ and select the correct option.

Column $I$ (Part of the alimentary canal)	Column $II$ (Shape)
$i$. Duodenum	$a$. Worm-like
$ii$. Stomach	$b$. $U$-shaped
$iii$. Tongue	$c$. $J$-shaped
$iv$. Appendix	$d$. Triangular