2017. július 5., szerda

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Figure 18-47 The purple sulfur bacterium Rhodopseudomonas viridis performs light-driven ATP synthesis

The bacteriochlorophylls, bacteriopheophytins, and quinone are held rigidly in a fixed orientation relative to each other by the proteins of the reaction center. The photochemical reactions among these components therefore take place in a virtually solid state, accounting for the high efficiency and rapidity of the reactions; nothing is left to chance collision or dependent upon random diffusion.

Lehninger-Nelson-Cox: Principles of Biochemistry, 589.o.

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Szószedet: homeostasis (önbévület*)

homeostasis : The maintenance of a dynamic steady state by regulatory mechanisms that compensate for changes in external circumstances. ___...