Digestion

Definition

Digestion is the process by which food is broken down into smaller, more absorbable components that can be used by the body for energy and growth.

Types of Digestion

• Mechanical Digestion: The physical breakdown of food into smaller pieces through chewing and churning.
• Chemical Digestion: The breakdown of food into smaller molecules by enzymes and acids.

Digestive System Organs

The digestive system includes the following organs:

• Mouth
• Esophagus
• Stomach
• Small Intestine
• Large Intestine
• Liver
• Pancreas

Process of Digestion

1. Ingestion: Intake of food through the mouth.
2. Digestion: Breakdown of food into smaller molecules.
3. Absorption: Passage of nutrients into the bloodstream from the digestive tract.
4. Elimination: Removal of undigested waste from the body.

Study Tips

When studying digestion, it's important to:

• Understand the role of enzymes in chemical digestion.
• Memorize the different parts of the digestive system and their functions.
• Practice labeling diagrams of the digestive system to reinforce your understanding of its structure.
• Review the process of digestion step by step to ensure you have a comprehensive understanding.