Digestive

Which organ of the digestive system secretes pepsin and hydrochloric acid?

• mouth

• stomach

• esophagus

• small intestine

Tags

NGSS.MS-LS1-7

Which organ of the digestive system begins the breakdown of proteins in food?

• mouth

• stomach

• esophagus

• small intestine

In which organ does most of the nutrient absorption occur?

• small intestine

• large intestine

• stomach

• mouth

In which organ of the digestive system are most fats broken down?

• esophagus

• stomach

• small intestine

• large intestine

Which organ is responsible for absorbing water from digested food?

• small intestine

• stomach

• large intestine

• mouth

Which of the following organs does NOT contribute digestive juices and enzymes?

• liver

• gallbladder

• pancreas

• thyroid

The enzyme, PEPSIN, breaks down proteins into...

• glucose

• fatty acids

• amino acids

• nucleic acids

The breakdown of starch (carbohydrates) begins in the...

• small intestine

• stomach

• large intestine

• mouth

Amylase is an enzyme found in the ___________ and begins breaking down which food molecule?

• mouth; fats

• stomach; fats

• stomach; carbohydrates

• mouth; carbohydrates

The enzyme, LIPASE, breaks down lipids (fats) into...

• glucose

• fatty acids

• amino acids

• nucleic acids