Fatty acid and glycerol are first taken up from the alimentary canal by

Intestinal villi are mainly concerned with

Answer briefly: Why are villi present in the intestine and not in the stomach?

Which substances are absorbed by active transport?

Match the following columns:

$P$. Monosaccharides, amino acids, some $Cl^-$	$I$. Facilitated transport
$Q$. Fructose and some amino acids	$II$. Simple diffusion
$R$. Water	$III$. Osmosis
$S$. Amino acids, glucose, $Na^+$	$IV$. Active transport

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.