Science Key Terms
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11 terms
Terms | Definitions |
|---|---|
 Amino acids | a group of smaller molecules that are the building blocks or proteins |
| binary compound | a chemical compound that consists of two elements |
| carbohydrates | a group of energy-rich compounds that are made from carbon,hydrogen, and oxygen that include sugars and starches |
| chemical bond | a bond that forms when atoms transfer or share electrons |
| chemical formula | a representation of a compound that includes the symbols and ratios of atoms of each element in the compound |
| covalent bond | a chemical bond formed by atoms that are sharing oner or more electrons |
| DNA | a type of nucleic acid that contains the genetic code for an organism |
| Enzyme | a type of protein used to speed up chemical reactions in living things |
| Ion | an atom or group of atoms that has an electric charger other than zero, created when an atom or group of atoms gain or lose electrons |
| Ionic bond | a bond that transfers an electron from one atom to another resulting in attraction between oppositely charged ions |
| lipids | a group of energy rich compounds that are made from carbon, hydrogen, and oxygen |
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