human nutrition

Front

What is human nutrition?

Back

Human nutrition is the study of how food and drink affect health, growth, and development in humans.

Front

What is the primary function of the digestive system?

Back

The primary function of the digestive system is to break down food into nutrients, which the body uses for energy, growth, and cell repair.

Front

What is the role of enzymes in digestion?

Back

Enzymes are biological catalysts that speed up the chemical reactions involved in breaking down food into smaller, absorbable molecules.

Front

What is the difference between mechanical and chemical digestion?

Back

Mechanical digestion involves physical processes like chewing and grinding, while chemical digestion involves enzymatic breakdown of food.

Front

What is the function of the mouth in digestion?

Back

The mouth is where ingestion begins; it mechanically breaks down food through chewing and mixes it with saliva for chemical digestion.

Front

What is the role of the stomach in digestion?

Back

The stomach further breaks down food using gastric juices, which contain hydrochloric acid and enzymes.

Front

What is bile and where is it produced?

Back

Bile is a digestive fluid produced by the liver that helps emulsify fats for digestion.

Front

What is the function of the gall bladder?

Back

The gall bladder stores bile produced by the liver until it is needed for digestion.

Front

What is dietary fiber and why is it important?

Back

Dietary fiber is a type of carbohydrate that the body cannot digest; it is important for maintaining a healthy digestive system.

Front

Where does most nutrient absorption occur in the digestive system?

Back

Most nutrient absorption occurs in the small intestine.