vine a discutir unos asuntos I came to discuss several matters o issues; no sÃ© nada de ese asunto I don't know anything about it o the matter; el asunto de los impuestos divide al gobierno the government is divided on the matter o question o issue of taxes; hemos tratado el asunto de nuestro divorcio we've talked about the subject of our divorce; ...
The Role of Enzymes in Living Organisms. Enzymes are macromolecules that catalyze chemical reactions within a living organism. Most are proteins, but there are also RNA enzymes which aid in protein synthesis.
Enzymes. At any given moment, all of the work being done inside any cell is being done by enzymes. If you understand enzymes, you understand cells. A bacterium like E. coli has about 1,000 different types of enzymes floating around in the cytoplasm at any given time.