Human Digestive System

What is the process of breaking down food into simple and diffusible molecules called?

Which part of our body performs the activity of breaking down food into smaller substances?

What is the function of the digestive system?

What is the importance of digestion?

Why do organisms need food?

Which organ of the digestive system comes in contact with food and secretes digestive enzymes?

What is the main function of physical digestion?

Which organ is part of the accessory digestive organs?

What is the length of the alimentary canal?

What is the main function of saliva in the mouth?

Which step of digestion involves the breakdown of large food particles into small particles?

What is the function of the oesophagus in the digestive system?

Which organ stores and releases bile?

What is the role of the pancreas in digestion?

What happens during chemical digestion?

What is the main function of physical digestion?

Digestion Process

The process of breaking down food into simple and diffusible molecules is called digestion.
Digestion takes place in the digestive system.

Digestive System

The digestive system is responsible for breaking down food into smaller substances.
Its main function is to convert food into energy and nutrients that can be absorbed and utilized by the body.

Importance of Digestion

Digestion is important because it allows the body to extract nutrients and energy from food.
Organisms need food to obtain energy and nutrients to sustain life.

Mouth and Digestion

The organ that comes in contact with food and secretes digestive enzymes is the mouth.
The main function of saliva in the mouth is to break down carbohydrates into simpler sugars.
Physical digestion, which involves the breakdown of large food particles into small particles, occurs in the mouth.

Alimentary Canal

The length of the alimentary canal is approximately 9 meters.
The alimentary canal is the passage through which food travels during digestion.

Esophagus

The function of the esophagus is to transport food from the mouth to the stomach.

Accessory Digestive Organs

The liver is part of the accessory digestive organs.
The liver stores and releases bile, which helps in the digestion of fats.

Pancreas

The role of the pancreas in digestion is to produce digestive enzymes that break down carbohydrates, proteins, and fats.
Chemical digestion, which involves the breakdown of food into smaller molecules, occurs in the presence of these enzymes.

Chemical Digestion

During chemical digestion, enzymes break down food into smaller molecules that can be absorbed by the body.
Physical digestion and chemical digestion work together to break down food into nutrients and energy that can be utilized by the body.

Learn about the process of breaking down food into smaller substances that can be absorbed into the body cells. Understand the role of various organs in the human digestive system.