The process by which the digested food of the alimentary canal passes through its mucous membrane into the circulatory system is called:

Read carefully the following statements regarding the absorption of nutrients. Find the incorrect statements and choose the correct option from the given below codes.
$I.$ Absorption of carbohydrates takes place in the stomach and jejunum part of intestine.
$II.$ The water-soluble end products of food can reach the blood and lymph directly.
$III.$ Large intestine and buccal cavity do not function as the site of absorption.
$IV.$ Large intestine is the site of absorption of about $90 \%$ of the total water present in the hydrolysed food.

Lacteals absorb $ . . . . . . $.

Carrier ions like $Na^+$ facilitate the absorption of substances like

$..............$ cannot be absorbed.

Which of the following substances is $NOT$ associated with the hepatic portal system?