V2EX terminal electron acceptor

Terminal Electron Acceptor

释义 Definition

终末电子受体:在呼吸作用(有氧或无氧)中,电子传递链末端最终接收电子的物质。常见的终末电子受体包括氧气(O)(有氧呼吸)以及硝酸盐(NO)、硫酸盐(SO)、二氧化碳(CO)等(无氧呼吸或某些厌氧代谢途径)。
(该术语在微生物学、生物化学与环境科学中非常常见。)

发音 Pronunciation (IPA)

/tmnl lktrn ksptr/

词源 Etymology

  • terminal 源自拉丁语 terminus(界限、终点),表示“末端的、最终的”。
  • electron 来自希腊语 ēlektron(琥珀;早期与静电现象相关),后来用于指“电子”。
  • acceptor 来自拉丁语 accipere(接受、接纳),表示“接受者”。
    合起来即“在末端接受电子的物质”。

例句 Examples

Oxygen is the terminal electron acceptor in aerobic respiration.
氧气是在有氧呼吸中充当终末电子受体的物质。

In anaerobic environments, microbesmay use nitrate or sulfate as the terminal electron acceptor, changing the chemistry of soils and sediments.
在厌氧环境中,微生物可能以硝酸盐或硫酸盐作为终末电子受体,从而改变土壤与沉积物的化学性质。

相关词 Related Words

文学与经典出处 Literary Works

  • Brock Biology of Microorganisms(《布罗克微生物学》/《微生物学:微生物的生物学》):在微生物呼吸与厌氧代谢章节中讨论不同terminal electron acceptors(如 nitrate、sulfate)。
  • Lehninger Principles of Biochemistry(《雷宁格生物化学原理》):在电子传递链与氧化磷酸化相关内容中涉及“终末电子受体”的概念(常以氧为例)。
  • Microbial Ecology: Fundamentals and Applications(Atlas & Bartha,《微生物生态学:基础与应用》):在环境微生物能量代谢与生物地球化学循环中使用该术语,联系硝化/反硝化与硫循环等过程。
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