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Reactant of an enzyme-catalyze reaction.

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Protein catalyst that speeds up the rate of specific biological reactions.

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Substance that speeds up the rate of a chemical reaction.

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Compound with an amino group on one and a carboxyl group on the other end.

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Macromolecule that contains carbon, hydrogen, oxygen, and nitrogen; needed by the body for growth and repair.

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Macromolecules containing hydrogen, oxygen, nitrogen, carbon, and phosphorus

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Macromolecules made mostly from carbon and hydrogen atoms, includes fat, oils, and waxes.

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Compound made of carbon, hydrogen, and oxygen atoms, types of nutrients that are the major source of energy to the body.

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Molecule composed of many monomers, makes up Marcomolecules.

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Small chemical unit that makes up a polymer.

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Compound that produces hydroxide ions in solution with a pH of more than 7.

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Compound that forms hydrogen ions in a solution, a solution with a pH of less than 7.

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Force of attraction between different kinds of molecules.

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Attraction between molecules of the same substance.

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are the outermost electrons which, therefore, are located on the highest energy levels. Consequently, these are the electrons available for chemical bonding.

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Type of bond between atoms in which electrons are shared.

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Chemical Bond formed when one or more electrons are transferred from one to another.

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A atom that has a positive or negative charge.

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One of several forms of a single element, which contain the same number of protons but a different number of neutrons.

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A basic unit of matter.