百度作业网英语翻译Electron transfer at each step of the respiratory chain
来源：学生作业帮 编辑：百度作业网作业帮 分类：英语作业 时间：2024/05/15 14:10:10
英语翻译
Electron transfer at each step of the respiratory chain is not completely efficient,resulting in the escape of electrons that reduce O2 to superoxide anion,which is converted to hydrogen peroxide by the action of manganese superoxide dismutase.These reactive oxygen species (ROS) have the potential to damage lipids,proteins,and nucleic acids,leading to cellular dysfunction or death.
Electron transport chain activity appears to be optimized for physiological PO2 and deviations from normal PO2 (in either direction) are associated with increased ROS production.The utilization of O2 for energy metabolism is a two-edged sword:the complete oxidation of glucose to CO2 and H2O greatly increases the yield of ATP as compared with the incomplete oxidation of glucose to lactate; however,the transfer
of electrons poses an inherent risk of ROS production.As a result,the cellular O2 concentration must be very tightly regulated through homeostatic mechanisms that control O2 delivery and O2 utilization.
Electron transfer at each step of the respiratory chain is not completely efficient,resulting in the escape of electrons that reduce O2 to superoxide anion,which is converted to hydrogen peroxide by the action of manganese superoxide dismutase.These reactive oxygen species (ROS) have the potential to damage lipids,proteins,and nucleic acids,leading to cellular dysfunction or death.
Electron transport chain activity appears to be optimized for physiological PO2 and deviations from normal PO2 (in either direction) are associated with increased ROS production.The utilization of O2 for energy metabolism is a two-edged sword:the complete oxidation of glucose to CO2 and H2O greatly increases the yield of ATP as compared with the incomplete oxidation of glucose to lactate; however,the transfer
of electrons poses an inherent risk of ROS production.As a result,the cellular O2 concentration must be very tightly regulated through homeostatic mechanisms that control O2 delivery and O2 utilization.
呼吸链每一步的电子转移并非完全高效的,会导致电子逃逸并将氧气还原成超氧阴离子自由基,通过锰超氧化物歧化酶的作用转化为过氧化氢.这些活性氧簇（ROS）有可能破坏脂类,蛋白质,核酸,导致细胞功能障碍或死亡.
随着活性氧簇的增加,生理氧分压的电子传递链活动似乎被优化了,从而偏离了正常氧分压（在任一方向）.利用氧能量代谢是一把双刃剑：完整的葡萄糖氧化为二氧化碳和水和不完全氧化的葡萄糖转化成乳酸相比,大大增加了三磷酸腺苷产量,然而,电子传递存在着活性氧簇产生的潜在危险.因此,细胞氧气浓度必须通过稳态机制进行严密调节来控制氧输送和氧利用.
随着活性氧簇的增加,生理氧分压的电子传递链活动似乎被优化了,从而偏离了正常氧分压（在任一方向）.利用氧能量代谢是一把双刃剑：完整的葡萄糖氧化为二氧化碳和水和不完全氧化的葡萄糖转化成乳酸相比,大大增加了三磷酸腺苷产量,然而,电子传递存在着活性氧簇产生的潜在危险.因此,细胞氧气浓度必须通过稳态机制进行严密调节来控制氧输送和氧利用.
英语翻译Electron transfer at each step of the respiratory chain
英语翻译CELLULAR PROCESSES Atp Synthase Electron Transport Chain
英语翻译The production of various electron tubes has been increa
英语翻译1.abzyme 2.respiratory chain 3.biological membrance 4.mi
英语翻译The electron at the radius r experienced a repulsion fro
英语翻译The militia Bill proposed the transfer of military comma
英语翻译Transfer impedance/unit length of the continuous isolato
英语翻译buffersize：Overrides the default transfer buffer size of
英语翻译An adequate organization of current transfer from the pl
英语翻译 a copy of the wire transfer for our records
英语翻译Business Process Outsourcing.The transfer of internal bu
Ruturn of The Chain Gang