Digestive System

What carries food from the pharynx to the stomach?

• larynx

• trachea

• esophagus

• bronchioles

What type of digestion takes place in the stomach?

• mechanical

• chemical

• both mechanical and chemical

Where does the process of digestion begin?

• mouth

• esophagus

• stomach

• small intestine

What enzyme is found in saliva that starts digesting carbohydrates?

• amylase

• chyme

• pepsin

• bile

Where does the absorption of nutrients from food take place?

• stomach

• liver

• small intestine

• large intestine

What makes the small intestine have such a large surface area?

• 21 feet long

• villi

• microvilli

• all answers contribute

What chemically breaks down food into smaller molecules?

• teeth

• muscles of the stomach

• enzymes

What does the pancreas do?

• produces digestive enzymes to break down proteins and fats

• produces sodium bicarbonate to neutralize stomach acid

• regulates our blood sugar levels

• all answers are correct

A large organ of the digestive system that makes chemicals (bile) to help the body break down fats and rid itself of harmful substances.

• esophagus

• mouth

• liver

• stomach

What is the main function of the (hilly) villi?

• They move food from the stomach to the small intestine

• They absorb nutrients into the bloodstream

• They absorb water from chyme

• They move food from the small intestine to the large intestine