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ch 1 sec 3

element any substance that cannot be broken down into simpler sybstances
atom smallet unit of an element
compound 2 or more elements combine chemically
molecule smallest unit of compounds
organic compounds most compunsd that contain carbon
WHat are the 4 most important groups of organic compunds ofund in living things? lipids, protiens, carbohydrates, nucleic acids
carbohydrate energyrish organic compound made of the elemts carbon hydrogen and oxygen. ex. sugar and starches
proteins large organic molecules made of carbon, hydrogen,oxygen, nitrogen, and in some cases sulfur
amino acids protein molecules made up on smaller molecules
enzyme type of protein tht speeds up a chemical reaction in aliving thing
lipids fats, oils , waxes,-energy richorganic compunds- made of carbon hydrogenand oxygen. ex cholestral
nucleic acids very large organic molecules made of carbons oxygen hydrogen nitrogen and phosphorus
DNA genetic material tht carries info about and organism tht is passes from parent to offspring
RNA plays an important role in the porduction of proteins
true or false? without water, most chemical reactions witihin cellls cant take place true
Created by: sherylxo