Question

In the stomach after physical and chemical digestion, food is called
a) Chyme
b) Chyle
c) Amino acid
d) Bolus

Answer 1

The stomach is the digestive organ in which the food reaches and gets partially digested. When food enters the stomach through the oesophagus and initiates the release of the gastric juices, the gastric juices help in the digestion of the food particles.

Complete answer:
Physical digestion of food is the process of chewing and breaking food into smaller digestible components. This process takes place in the mouth and initiation of digestion starts with partial digestion of carbohydrates by the salivary amylase present in the mouth. The food is then transported to the stomach through a food pipe also known as the oesophagus. Food when it reaches the stomach initiates the release of the digestive juices by the gastric glands. The stomach releases hydrochloric acid which helps in the digestion of food. It helps in maintaining the pH of the stomach to a highly acidic level. The stomach is the place where protein digestion starts and it gets partially digested. The hydrochloric acid present in the stomach also kills the bacteria that enter along with the food. This partially digested food is then sent to the small intestine. This is known as chyme. Further digestion of chyme takes place in the small intestine where absorption of various nutrients takes place.

So, the answer is ‘chyme’, option (a).

Note:
When the chewed food is sent to the stomach it is known as a bolus. The food is sent in small portions making it easier for digestion. In oesophagus the food is moved down by peristalsis or peristaltic movement.