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3.3
Mr. Tulley's class
9
Science
7th Grade
09/22/2010

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Term
Element
Definition
Any substance that cannot be broken down into simpler substances
Term
Compound
Definition
Two or more elements that are chemicaly combind
Term
Carbohydrate
Definition
An energy-rich organic compound made of elements, carbon, hydrogen, and oxygen
Term
Protein
Definition
large organic molecule made of carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur
Term
Enzyme
Definition
A protein that speeds up chemical reactions in a living thing
Term
Lipid
Definition
Energy-rich organic compound, such as fat, oil, or wax, that is made of carbon, hydrogen, and oxygen
Term
Nucleic acid
Definition
Very large organic molecule made of carbon, oxygen, hydrogen, nitrogen, and phosphorus, that contains the instructional cells need to carry out all functions of life
Term
DNA
Definition
Deoxyribonucleic acid; the general material that carries info about an organism and is passed from parent to offspring
Term
RNA
Definition
Ribonucleic acid; a nucleic acid that plays an important role in production of proteins
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