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cell
Term | Definition |
---|---|
element | any substance that cannot be broken down into simpler substances |
atom | the smallest unit of an element |
compound | the chemical combination of two or more elements |
molecule | the smallest unit of most compounds |
organic compounds | most compounds that contain carbon |
inorganic compounds | compounds that do not contain the element carbon |
proteins | large organic molecules made up of carbon hydrogen oxygen nitrogen and in some cases sulfur |
amino acids | small molecules that make up proteins |
enzyme | type of protein that speeds up chemical reactions in living things |
nucleic acids | very large organic molecules made up of carbon oxygen hydrogen nitrogen and phosphorus |
DNA | type of nucleic acid that passes from parent to offspring and directs all the cells functions |
RNA | type of nucleic acid that plays an important role in the production of proteins |