Mechanical and Chemical Digestion

Front

What is mechanical digestion?

Back

Mechanical digestion is the physical process of breaking down food into smaller pieces without changing its chemical structure.

Front

What is chemical digestion?

Back

Chemical digestion is the process of breaking down food into simpler molecules through chemical reactions, often involving enzymes.

Front

Mechanical digestion is also known as?

Back

Physical digestion.

Front

Which part of the digestive system is primarily responsible for mechanical digestion?

Back

The mouth, where chewing occurs.

Front

What role does saliva play in digestion?

Back

Saliva contains enzymes that begin the chemical digestion of carbohydrates.

Front

What is an example of chemical digestion in the stomach?

Back

The action of hydrochloric acid breaking down food.

Front

What happens during chewing?

Back

Chewing is a form of mechanical digestion that breaks food into smaller pieces.

Front

What is the main difference between mechanical and chemical digestion?

Back

Mechanical digestion involves physical changes to food, while chemical digestion involves changes to the food's chemical structure.

Front

What is the role of the intestines in digestion?

Back

The intestines push food down and absorb nutrients, but they also play a role in both mechanical and chemical digestion.

Front

What is an enzyme?

Back

An enzyme is a protein that speeds up chemical reactions in the body, including those involved in digestion.