Food Composition and Digestive System

Which nutrient is primarily responsible for providing energy and also plays a role in body insulation?

What is the correct order of the five stages of nutrition?

What role do enzymes play in the digestive system?

Which statement accurately describes fiber's function in the digestive system?

Which organ is primarily responsible for the absorption of simple food molecules into the bloodstream?

Food Composition

Food is made up of carbohydrates, proteins, fats, vitamins, minerals, and water.
Carbohydrates and fats provide energy, while fats also insulate the body.
Fiber prevents constipation.
Proteins build and repair the body.
Vitamins and minerals are needed in small amounts for a healthy body.

Digestive System

The digestive system is a group of organs that break down food to absorbable molecules.
Peristalsis is the wave-like muscular action that pushes food through the system.
Mechanical digestion breaks down food into small pieces in the mouth and stomach.
Chemical digestion uses enzymes to break down food in the mouth, stomach, and small intestine.
Enzymes speed up chemical reactions without being changed themselves.
Absorption occurs when simple food molecules are taken into the bloodstream from the small intestine.
The large intestine absorbs water, and waste is eliminated through the anus in a process called egestion.

Gut Microbiome

The gut microbiome is the collection of microorganisms in the large intestine.
A healthy microbiome benefits overall health.

Stages of Nutrition

The five stages of nutrition are ingestion, digestion, absorption, assimilation, and egestion.

This quiz tests your knowledge on the composition of food and the functions of the digestive system. Learn about the roles of carbohydrates, proteins, fats, vitamins, and minerals in the body, as well as the processes of digestion and absorption. Discover how the body breaks down food and the importance of gut microbiota.