Question

Chyme is formed in ___________.

• A. mouth
• B. Oesophagus
• C. stomach
• D. intestine

Answer 1

The correct option is C

stomach

The correct option is option (C):

Explanation of the correct option:

1. Chyme is a churned semi-solid food that is formed in the stomach of the digestive tract.
2. The semi-digested food from the mouth enters the stomach where it gets mixed with gastric juice that contains certain enzymes and hydrochloric acid.
3. These digestive juices break down complex protein molecules into simpler forms whereas hydrochloric acid (HCl) kills the harmful bacteria present in the food.
4. Thus, continuous movement of the walls of the stomach mixes the semi-digested food with the digestive juices and thus forms a semifluid mass known as chyme.

Explanation of the incorrect option:

Option (A):

The mouth is the first part of the digestive tract where digestion of complex food materials (carbohydrates) starts.

Option (B):

The oesophagus is a narrow tube-like structure through which food passes from the mouth into the stomach.

Option (D):

The intestine is a coil-like tube that is divided into two main parts- namely the small intestine and the large intestine. The small intestine deals with the absorption of nutrients whereas the large intestine deals with the absorption of water.

Final answer: Chyme is formed in the stomach.