Digestive System Quiz

What is the primary function of the digestive system?

• To transport oxygen

• To break down food into nutrients

• To pump blood

• To produce hormones

Where does digestion begin in the body?

• Stomach

• Small intestine

• Mouth

• Esophagus

Which organ is responsible for absorbing nutrients?

• Liver

• Small intestine

• Stomach

• Large intestine

What is the function of the large intestine?

• Absorbing water

• Breaking down food

• Producing enzymes

• Storing bile

What enzyme in saliva helps break down carbohydrates?

• Lipase

• Amylase

• Pepsin

• Protease

Which organ produces bile to aid in digestion?

• Pancreas

• Liver

• Gallbladder

• Stomach

What is the muscular tube that carries food from the mouth to the stomach?

• Trachea

• Esophagus

• Intestine

• Colon

What is the main function of the respiratory system?

• To circulate blood

• To absorb nutrients

• To exchange gases (oxygen and carbon dioxide)

• To produce hormones

Which organ is the site of gas exchange in the lungs?

• Trachea

• Alveoli

• Bronchi

• Diaphragm

What muscle helps expand the lungs for breathing?

• Diaphragm

• Heart

• Trachea

• Larynx