Digestive System Comprehension Questions

What is the primary function of the digestive system?

• To help with breathing

• To pump blood throughout the body

• To convert food into nutrients for the body

• To regulate body temperature

How many main organs are there in the digestive system?

• 9

• 4

• 6

• 7

What is the tube that links all the organs in the digestive system called?

• Intestinal tube

• Digestive tube

• Gastrointestinal tract

• Food canal

What enzyme in saliva helps break down carbohydrates?

• Pepsin

• Protease

• Amylase

• Lipase

Which part of the digestive system secretes hydrochloric acid?

• Gallbladder

• Liver

• Stomach

• Small intestine

What enzyme in the stomach helps break down proteins?

• Lipase

• Pepsin

• Amylase

• Insulin

What is the name of the valve through which chyme enters the small intestine from the stomach?

• Pyloric valve

• Pancreatic valve

• Intestinal valve

• Duodenal valve

Where does the majority of the iron get absorbed in the small intestine?

• Villi

• Ileum

• Duodenum

• Jejunum

What is the primary job of the large intestine?

• Produce bile

• Digest carbohydrates

• Absorb water

• Break down proteins

How do gut bacteria in the large intestine help with digestion?

• Break down fiber

• Absorb nutrients

• Secrete bile

• Produce enzymes