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 are proteins that act as catalysts for reactions, such as those in cellular respiration. They increase the likelihood of a reaction by lowering the energy required for a reaction to occur. In the process, enzymes are left unchanged by the reaction.