Which is the first enzyme to mix with food in the digestive tract

Which is the first enzyme to mix with food in the digestive tract?

  1. Pepsin
  2. Cellulase
  3. Amylase
  4. Trypsin

Answer

Chemical digestion of food starts in the mouth. Digestion of starch by salivary amylase takes place in mouth. Oesophagus serves to push the food into stomach only. NO digestion takes place here. Gastric juice of stomach digests the protein part of food.

Pancreatic amylase, trypsin and lipase as well as intestinal peptidases and maltase carry out chemical digestion of food in small intestine. The simpler substances formed by chemical digestion are then absorbed small intestinal villi. Large intestine is the organ of water and salts reabsorption from undigested food and elimination of remaining undigested material out of body.

The correct option is C.