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used by living things for energy
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form when two or more elements combine chemically
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large organic molecules containing Carbon, Hydrogen, Oxygen, and Nitrogen (in some proteins, sulfur)
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type of compound containing carbon
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type of acids that are long molecules containing Carbon, Hydrogen, Oxygen, Nitrogen, and Phosphorus
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specialized proteins that speed up chemical reactions inside living things
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substance that cannot be broken down into simpler substances
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many compounds in living things contain this element
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the shape of a DNA molecule is a double ______
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used to strore energy and makes up cell membranes
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a necessary inorganic compound which makes up 2/3 of every living thing
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the smallest unit of an element
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the molecule that stores the genetic information used to control the cell
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