Digestive System

What is the main function of the digestive system?

• Store nutrients

• Break food into simpler molecules for absorption

• Produce energy directly from food

• Eliminate toxins from the blood

Which type of digestion involves physically breaking food into smaller pieces?

• Chemical

• Enzymatic

• Mechanical

• Hydrolytic

What type of muscle movement pushes food through the esophagus?

• Peristalsis

• Churning

• Diffusion

• Reflex contraction

Where does most nutrient absorption occur in the digestive system?

• Stomach

• Large intestine

What is chyme?

• Undigested food

• A hormone involved in digestion

• A mixture of partially digested food and digestive fluids

• An enzyme in the stomach

What is the function of the cardiac sphincter?

• Moves bile from the liver to the stomach

• Prevents stomach acid from entering the esophagus

• Produces pepsin

• Releases insulin

Which organ produces bile?

• Pancreas

• Gallbladder

• Liver

• Stomach

Where is bile stored when not in use?

• Stomach

• Liver

• Gallbladder

• Small intestine

Which organ neutralizes stomach acid entering the small intestine?

• Liver

• Large intestine

• Pancreas

• Gallbladder

The majority of digestion in the small intestine happens in the:

• Jejunum

• Ileum

• Duodenum

• Colon