The lacteals are found in

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.

What will happen first,when glucose is administered orally?

Which substances are absorbed by simple diffusion?

Monosaccharides and amino acids are absorbed directly into .......... in the ileum.

Discuss the mechanisms of absorption of nutrients in the human digestive system.