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Digestive Molecules

Molecules used in Digestion

Molecule The simplest unit of a chemical compound that can exist, formed when two or more atoms join together chemically; a group of atoms bonded together.
Large Molecule Molecules made up of many atoms bonded together.
Proteins Biomolecules made of amino acids that perform biological functions; needed to build and repair body structures, and to regulate processes in the body.
Amino Acids The molecular and organic building blocks of proteins.
Lipids (Fat) One of the nutrient-providing components of food; used as an energy source in the body, and found in butter, oils, nuts, meat, fish, and some dairy products.
Fatty Acids A carbon-based molecule that can store large amounts of energy; building blocks of lipids.
Carbohydrates Biomolecules made of oxygen, hydrogen, & carbon that organisms use for structural support & energy storage; can be broken down into simple sugars.
Sugars (Glucose) A simple molecule with stored chemical energy; product of photosynthesis & building blocks of the carbohydrates in our bodies & in the food we eat.
Fiber Tough, stringy structures in plants that the human body cannot digest or break down, making them pass unchanged through the digestive system.
Enzymes Biomolecules that speed up specific chemical reactions; functional proteins with names usually end in "-ase."