Non-cyclic Electron Transport in Photosynthesis

光合作用中的非循环电子传递

Photophosphorylation refers to the use of light energy to ultimately provide the energy to convert ADP to ATP, thus replenishing the universal energy currency in living things. In the simplest systems in prokaryotes, photosynthesis is used just for the production of energy, and not for the building of any biological molecules. But in plants the photosynthesis process also provides energy in the form of reduced coenzymes which drive the process of biochemical synthesis culminating in the production of glucose and other sugars. This process uses both Photosystem II and Photosystem I acting in series. The above illustration is patterned after Moore and shows some of the steps of the non-cyclic electron transport process.

光合磷酸化是指利用光能最终将ADP转化为ATP，从而补充生物体中的通用能量货币。在原核生物中最简单的系统中，光合作用仅用于产生能量，而不用于合成任何生物分子。但植物的光合作用过程也以还原辅酶的形式提供能量，驱动生物合成过程，最终产生葡萄糖和其他糖类。这一过程使用了光系统II和光系统I依次作用。上述示意图是根据Moore的模式绘制的，展示了非循环电子传递过程的一些步骤。

Another way to look at this two-stage process for providing the energy for building molecules is in terms of the electron energies measured in units of the redox potential in volts. This illustration, patterned after Karp, outlines the steps in the process with the position on the vertical axis indicating the level of energy attained.

另一种看待通过两阶段过程为分子构建提供能量的方式，是通过电子能量以伏特为单位的氧化还原电势来衡量。这种示意图借鉴了Karp的模式，以垂直轴上的位置表示所达到的能量水平。

The thylakoid membranes are the location for the electron transport interactions that make available the light energy for chemical processes.

类囊体膜是电子传递相互作用发生的地方，使光能可用于化学过程。