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Science Unit 5 Flash Cards - Digestion

Bile Aids in the digestion of fat in the small intestin
Carbohydrates sugars or saccharides - molecules made up of carbon, hydrogen, and oxygen that break down to simple sugars; a nutrient used by other body systems for energy; the saliva in the moth begins to break complex carbohydrates into simple sugars body can use
Chemical Changes Produce new substances with properties from their original substances.
Compound A substance that is composed of 2 or more elements that are chemically combined.
Chemical Formulas Represent the types and numbers of elements present in the compound.
Element A pure substance that cannot be separated into simpler substances by physical or chemical means, the simplest form of matter.
Enzymes Proteins produced by living cells that bring about or speed up reactions. (such as in the digestion of food)
Inorganic Molecules Molecules found in the environment that rarely ever contain carbon; not produced by living things.
Lipids Steroids, waxes and fats - organic compound, broken down in the small intestine.
Nucleic Acid DNA - organic compounds found in living things.
Organic Molecules Chemical compounds produced by living things. All organic compounds contain the element Carbon.
Pancreatic Juices Aids in the digestion of lipids in the small intestine.
Pepsin Enzyme that aids in the digestion of protein in the stomach.
Peristalsis Wave-like muscle contractions that occur in the esophagus and intestines that help move food through the digestive system.
Physical Changes Changes in the phase, appearance or location of a substance. NO new substance is produced.
Proteins A nutrient found in meats, dairy, eggs and nuts; broken down in the stomach by enzymes (like pepsin) and stomach acids.
Saliva Clear liquid found in the mouth whose enzymes help to break down carbohydrates.
The Law of Conservation of Energy States that energy may be neither created or destroyed; only changed into a different form.
Created by: renaetelford