Functions of the Mouth in Digestion

The video explains how digestion begins in the mouth, highlighting both mechanical and chemical processes. Mechanical digestion involves the teeth and tongue breaking down food into smaller particles. Salivary glands secrete saliva containing the enzyme salivary amylase, which chemically digests starch into simple sugars. The video concludes by summarizing the dual role of the mouth in digestion.

What is the primary function of teeth in the mouth during digestion?

• To grind food into smaller particles

• To absorb nutrients

• To secrete enzymes

• To taste the food

What is the role of the tongue in the process of digestion?

• To secrete saliva

• To produce enzymes

• To absorb nutrients

• To break up food and move it for better chewing

Where are the salivary glands located?

• Inside the stomach

• Near the liver

• Above and below the mouth

• In the esophagus

What is the function of salivary amylase?

• To lubricate food

• To break down starch into simple sugars

• To break down proteins

• To absorb water

What type of digestion involves breaking down large molecules into smaller ones?

• Nutritional digestion

• Chemical digestion

• Physical digestion

• Mechanical digestion

Which of the following processes occurs in the mouth?

• Only mechanical digestion

• Neither mechanical nor chemical digestion

• Only chemical digestion

• Both mechanical and chemical digestion