Digestive System MCQs

Which of the following organs is *not* part of the digestive tract?

• Esophagus

• Liver

• Small intestine

• Stomach

What is the main function of the digestive system?

• Pump blood throughout the body

• Break down food and absorb nutrients

• Exchange gases

• Eliminate wastes through kidneys

Where does digestion begin?

• Stomach

• Mouth

• Esophagus

• Small intestine

Which enzyme in saliva breaks down starch?

• Pepsin

• Trypsin

• Amylase

• Lipase

The muscular movement that pushes food along the digestive tract is called:

• Contraction

• Peristalsis

• Relaxation

• Absorption

The flap that prevents food from entering the windpipe is called:

• Trachea

• Epiglottis

• Uvula

• Larynx

Which of the following organs produces bile?

• Pancreas

• Liver

• Gallbladder

• Stomach

What is the function of bile?

• Break down proteins

• Neutralize stomach acid

• Emulsify fats

• Absorb nutrients

Where is bile stored?

• Pancreas

• Gallbladder

• Small intestine

• Large intestine

Which enzyme breaks down proteins in the stomach?

• Pepsin

• Lipase

• Maltase

• Amylase