Food, Digestion, Nutrients and Excretion

Carbohydrate

An energy-rich organic molecule of carbon, hydrogen, and oxygen, like sugar or starches. Carbohydrate. Carbohydrates are nutrients that provide energy for our bodies.

Digestion

The breakdown of food into small molecules for use by the body. Digestion. Digestion is the process where food is broken down in our bodies to get nutrients.

Fat

A nutrient that stores energy, insulates the body, and protects organs. Fat. It is a type of molecule in our bodies that provides energy and helps maintain healthy cell function.

Kidney

The organ that filters water and waste from blood. Kidney. The kidney is a bean-shaped organ that cleans your blood and makes urine to remove waste from your body.

Nephron

A tiny filtering unit in the kidney, it removes waste from the blood to produce urine. Nephron. The nephron is a small structure in the kidney that helps clean the blood and make urine.

Nutrient

A substance that an organism needs to live, like water or minerals. Nutrient. Nutrients are essential materials that help living things grow and stay healthy.

Peristalsis

Wavelike muscular contractions that move food through the digestive tract. Peristalsis. It's the process where muscles in the digestive system squeeze to push food along the tract.

Protein

An organic compound that is made of amino acids. Protein. Proteins are essential molecules that help build and repair tissues in your body.

Urinary system

The organs that make, store, and remove urine from the body. Urinary system. The urinary system is the body's way of cleaning the blood and getting rid of waste as urine.

Vitamin

An organic molecule the body uses for growth and to regulate body functions. Vitamin. Vitamins are essential nutrients that help your body work properly and stay healthy.