Mechanical & Chemical Digestion

What organ carries food from the mouth to the stomach?

• esophagus

• small intestine

• large intestine

• liver

Digestion begins _____

• in the mouth

• in the esophagus

• in the stomach

• in the liver

Chewing food is an example of

• chemical digestion

• mechanical digestion

The muscle action that moves food through the esophagus and the rest of the digestive system is called

• peristalsis

• stasis

• chyme

• bolus

Saliva softening food is an example of

• chemical digestion

• mechanical digestion

What is the function of the teeth in digestion?

• to dissolve food

• to break down food into smaller pieces

• to absorb nutrients

• to absorb water

Which type of digestion breaks food into smaller pieces?

• mechanical

• chemical

The stomach releases hydrochloric acid and enzymes that break down the protein in meats and turn the protein into amino acids. This change is

• Physical
• Chemical

Why do we eat food?

• To get nutrients and energy
• To get full
• To make waste
• To gain weight

Breaking down of food into simple substances.  

• digestion
• elimination
• mouth
• absorption