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vocabulary
| Term | Definition |
|---|---|
| diffusion | net, random movement of particles from an area of higher concentration to an area of lower concentration, eventually resulting in even distribution. |
| dynamic equilibrium | result of diffusion where there is continuous movement of particles but no overall change in concentration. |
| hydrogen bond | weak chemical bond formed by the attraction of postivively charged hydrogen atoms to other negatively charged atoms. |
| polar molecule | molecule with an unequal distribution of charge, resulting in the molecule having positive end and a negative end. |
| amino acid | basic building blocks of protein molecules. |
| carbohydrates | organic compound used by cells to store and release; composed of carbon, hydrogen, and oxygen. |
| enzyme | type of protein found in all living things that changes the rate of chemical reactions. |
| isomer | compounds with the same simple formula but diffent three-dimensional structures resulting in diffent physical and chemical properties. |
| lipid | large compounds such as fat, and oil insoluble in water. |
| nucleic acid | complex biomolecules such as rna and dna, that store cellular information in cells in the form of a code |
| nucleotide | subunits of nuleic acid formed from a simple sugar, a phosphate group, and a nitrogenous base. |
| peptide bond | covalent bond formed between amino acid. |
| polymer | large molecule formed when many smaller molecules bond together. |
| protein | large complex polymer essential to all life composed of carbon, hydrogen, oxygen, nitrogen, and sometimes sulfure; |