Digestive System

Nutrition

The way which organisms get chemicals and energy in the form of food from their environment.

Ingestion

The taking of food into the digestive system.

Digestion

The breakdown of food both mechanically and chemically.

Absorption

Takes place when digested food passes from the intestine into the blood.

Egestion

The removal of unabsorbed waste from the digestive system.

Mechanical Digestion

Physical breakdown of food.

Chemical Digestion

The breakdown of food using enzymes.

Peristalsis

Involuntary wave of muscular contraction that moves food through the alimentary canal.

Protein Digestion equation

Protein —Proteases(Pepsin)-» Polypeptides and peptides.

Lipase Equation

Lipids —lipase-» fatty acids + glycerol

Starch Equation

Starch --amylase-> Maltose

Balanced Diet

Contains all the food types in correct proportions necessary to supply the nutrients to maintain good health.