Many units bonded together

A biological catalyst

The digestive organ that takes in food

Digestion requiring work or conscious movement

The method of transport by which proteins and carbohydrates are absorbed into the cells of the small intestine.

The absence of double bonds in a fatty acid chain

The category of macromolecules to which enzymes belong.

The digestive organ that absorbs water and salt

The organ that adds bile to the small intestine

Responsible for the absorption of most all nutrients that flow through the digestive tract

The addition of water to break apart macromolecules

The molecule that enzymes act on

The digestive organ that adds acid, enzymes, mixes and breaks food into liquid.

Gastric juices combined with partially digested food

The method of transport by which lipids are absorbed into the cells of the small intestine.

The tendency toward equilibrium within the body

The loss of the natural state, altering function

Finger-like projections that increase the surface area of the intestinal tract.

Wave like muscular contractions that moves food through the digestive tract

The reaction that breaks macromolecules into smaller subunits so they can pass from the digestive tract into the circulatory system.

A color change from brown to black in the presence of starch

Above or below this pH, the enzyme pepsin will denature

The digestive organ responsible for the most nutrient absorption.

The inactive form of the enzyme pepsin

Substances absorbed through the stomach lining