...The generation of ATP that is coupled with this electron transport is called oxidative phosphorylation (Figure 8). When the concentrations of ADP and orthophosphate decrease, the reaction rate of the respiratory chain (the speed of electron flow) decreases. This phenomenon is called respiratory control, and is thought to be a mechanism for preventing unnecessary consumption of substrates and oxygen and for supplying ATP in proportion to its consumption. In bacteria, the cell membrane has a respiratory chain similar to that of mitochondria. ... *Some of the terminology that refers to "respiratory control" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…この電子伝達と共役して行われるATP生成を酸化的リン酸化反応という(図8)。ADPとオルトリン酸の濃度が下がると,呼吸鎖の反応速度(電子の流れの速さ)が低下する現象を呼吸調節respiratory controlといい,基質と酸素の不必要な消費を避け,ATPの消費に見合った供給を行うしくみと考えられている。細菌においては細胞膜にミトコンドリアのものと類似の呼吸鎖が存在する。… ※「respiratory control」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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