- published: 26 Nov 2011
- views: 624585
Enzymes ( /ˈɛnzaɪmz/) are biological molecules that catalyze (i.e., increase the rates of) chemical reactions. In enzymatic reactions, the molecules at the beginning of the process, called substrates, are converted into different molecules, called products. Almost all chemical reactions in a biological cell need enzymes in order to occur at rates sufficient for life. Since enzymes are selective for their substrates and speed up only a few reactions from among many possibilities, the set of enzymes made in a cell determines which metabolic pathways occur in that cell.
Like all catalysts, enzymes work by lowering the activation energy (Ea‡) for a reaction, thus dramatically increasing the rate of the reaction. As a result, products are formed faster and reactions reach their equilibrium state more rapidly. Most enzyme reaction rates are millions of times faster than those of comparable un-catalyzed reactions. As with all catalysts, enzymes are not consumed by the reactions they catalyze, nor do they alter the equilibrium of these reactions. However, enzymes do differ from most other catalysts in that they are highly specific for their substrates. Enzymes are known to catalyze about 4,000 biochemical reactions. A few RNA molecules called ribozymes also catalyze reactions, with an important example being some parts of the ribosome. Synthetic molecules called artificial enzymes also display enzyme-like catalysis.
Actors: Kôji Totani (actor), Jûrôta Kosugi (actor), Hideyuki Tanaka (actor), Dan Martin (actor), Ikuya Sawaki (actor), Hideyuki Tanaka (actor), Kôzô Shioya (actor), Tom Fahn (actor), Takeshi Kusao (actor), Daisuke Gôri (actor), Steve Blum (actor), Takeshi Kusao (actor), Banjô Ginga (actor), Norio Wakamoto (actor), Hidekatsu Shibata (actor),
Genres: Animation, Sci-Fi,zu viele menschen, die ich täglich seh
schmelzen dahin wie gerade gefallner schnee
tausend gesichter, hundert stimmen um mich rum
in einem strom der mitreiÃt, bis zur ernüchterung
ich fühl mich so einsam
keiner ist da, deshalb einsam
die ignoranz läÃt menschen einfach nicht sehn
als ob sie sich andauernd um sich selber drehn
ich könnte sterben (und ich will es eigentlich auch)
und man würde weiterflieÃen, wie um einen stein der nicht untertaucht
ich fühl mich so einsam
keiner ist da, deshalb einsam
so viele menschen, die ich gerne seh
lösen sich auf, wie regentropfen im see
denn im letzten stück vorm nächsten augenblick
ist eine türe offen, durch die nur einer blickt
ich fühl mich so einsam