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Biochemistry Vocab

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Term
Definition
Monomer   molecular subunit of a polymer  
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Polymer   large carbon-based molecule formed by monomers  
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Carbohydrates   molecules composed of carbon, hydrogen and oxygen; includes sugars and starches  
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Lipid   nonpolar molecule composed of carbon, hydrogen and oxygen; includes oils and starches  
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Fatty Acid   hydrocarbon chain often bonded to glycerol in a lipid  
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Protein   polymer composed of amino acids inked by peptide bonds; is a polymer made up of monomers  
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Amino Acid   polymer composed of carbon, hydrogen, oxygen, nitrogen and sometimes sulfur  
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Nucleic Acid   are polymers that are made up of monomers called nucleotides  
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Chemical Reaction   changes substances into different substances by breaking and forming chemical bonds  
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Reactant   are the substances changed during a chemical reaction  
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Product   are the substances made by chemical reaction  
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Bond Energy   is the amount of energy that will break a bond between two atoms  
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Equilibrium   condition in which reactants and products of a chemical reaction are formed at the same rate  
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Activation Energy   is the amount of energy that needs to be absorbed for a chemical reaction to start  
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Exothermic   chemical reaction releases more energy than it absorbs  
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Endothermic   chemical reaction absorbs more energy than it releases  
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