In which organ does almost all enzymatic digestion of food occur? (A) stomach (B) small intestine (C) large intestine (D) pancreas

Key Concepts

Enzymatic Digestion

Enzymatic digestion refers to the biochemical process where enzymes break down complex food molecules into simpler forms that can be absorbed by the body. This process is crucial for nutrient absorption and occurs primarily in the digestive tract, where specific enzymes target carbohydrates, proteins, and fats.

Small Intestine

The small intestine is a key organ in the digestive system, where most enzymatic digestion and nutrient absorption occur. It is divided into three parts: the duodenum, jejunum, and ileum. The presence of digestive enzymes from the pancreas and bile from the liver enhances the breakdown of food in this organ.

Digestive Enzymes

Digestive enzymes are specialized proteins that catalyze the breakdown of food substances. They are secreted by various organs, including the pancreas and the lining of the small intestine, and are essential for the digestion of macromolecules like carbohydrates, proteins, and lipids into absorbable units such as sugars, amino acids, and fatty acids.