Food and Digestion: What Is Digestion?

Digestion is the body's process of breaking down food into simpler forms for use. It involves complex chemical reactions and various organs. The digestive system, a group of organs, works together to digest food, with the digestive tract consisting of tube-like organs joined for this purpose.

What is the primary purpose of digestion in the body?

• To increase the size of food particles

• To eliminate waste from the body

• To break down food into simpler forms

• To store food for later use

Which of the following best describes the complexity of digestion in the human body?

• It is a simple mechanical process

• It involves only one organ

• It is a process that occurs outside the body

• It involves many chemical reactions and various organs

What is the role of the digestive system?

• To work together to digest food

• To regulate body temperature

• To protect the body from infections

• To circulate blood throughout the body

How is the digestive tract specifically described?

• As a collection of muscles

• As a single large organ

• As a series of tube-like organs

• As a network of blood vessels

Which of the following is NOT a part of the digestive system?

• Stomach

• Heart

• Intestines

• Esophagus