Digestion

When you swallow food, a flap of tissue called the ________________ seals off your windpipe.

• esophagus
• epiglottis
• peristalsis
• enzyme

In your mouth, ______________, mixes with food to moisten it.

• esophagus
• saliva
• peristalsis
• enzymes

The process by which the body breaks down food into small nutrient molecules is called ____________.

• peristalsis
• absorption
• enzyme
• digestion

____________ is a thick, slippery substance that lines the esophagus.

• peristalsis
• mucus
• enzymes
• saliva

The process of ____________ involves the movement of nutrients through the wall of your digestive system into your blood.

• digestion
• peristalsis
• saliva
• absorption

Tags

NGSS.MS-LS1-3

Involuntary waves of muscle contractions that keep food moving in one direction through the digestive system are called __________.

• peristalsis
• mucus
• enzymes
• saliva

Most mechanical digestion occurs in the _____________.

• mucus
• mouth
• stomach
• saliva

The ___________ connects the mouth to the stomach.

• epiglottis
• enzymes
• esophagus
• saliva

A protein that speeds up chemical reactions in the body is a(n) ____________. Chemical digestion is accomplished by these proteins.

• epiglottis
• enzyme
• esophagus
• saliva