Digestive System — Important Questions

Produces bile, Stores glycogen, Detoxifies harmful substances, Destroys old red blood cells

The liver has many functions including bile production, glycogen storage, detoxification, and destroying old red blood cells. It does not produce gastric juice - that's done by the stomach lining.

Salivary glands, Stomach, Pancreas, Small intestine

Salivary glands produce ptyalin, stomach produces pepsin, pancreas produces multiple enzymes, and small intestine produces various enzymes. The large intestine produces no enzymes.

Acidic

Gastric juice is highly acidic due to the presence of hydrochloric acid (HCl). This acid kills germs and activates pepsin enzyme.

Small intestine

Villi are finger-like projections found in the inner lining of the small intestine (particularly the ileum). They increase the surface area for better absorption of nutrients.