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donates electrons to the electron transport chain of aerobic respiration at the lowest energy level. O ATP O Water O NADH FADH2

donates electrons to the electron transport chain of aerobic respiration at the lowest energy level. O ATP O Water O NADH FADH2

Biology 2e
Biology 2e
2nd Edition
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark
Chapter7: Cellular Respiration
Section: Chapter Questions
Problem 2VCQ: Figure 7.12 Cyanide inhibits cytochrome c oxidase, a component of the electron transport chain. If...
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### Biology Quiz - Electron Transport Chain #### Question 25 Which of the following donates electrons to the electron transport chain of aerobic respiration at the lowest energy level? - ATP - Water - NADH - FADH₂ [Select the correct answer] --- #### Tips for Understanding the Electron Transport Chain: The electron transport chain (ETC) is a series of complexes that transfer electrons from electron donors to electron acceptors via redox reactions, and couples this electron transfer with the transfer of protons (H+ ions) across a membrane. This process helps to create a proton gradient that drives the production of ATP. - **NADH and FADH₂**: Both are key electron donors to the electron transport chain, but NADH donates electrons at a higher energy level compared to FADH₂. - **ATP**: While ATP is a key product of the ETC, it is not involved in donating electrons to the chain. - **Water**: Water is produced at the end of the electron transport chain when oxygen accepts electrons and protons. It is not an electron donor. Understanding which molecules donate electrons and at which energy levels can help you better grasp how cellular respiration efficiently converts biochemical energy from nutrients into ATP. ---
Transcribed Image Text:### Biology Quiz - Electron Transport Chain #### Question 25 Which of the following donates electrons to the electron transport chain of aerobic respiration at the lowest energy level? - ATP - Water - NADH - FADH₂ [Select the correct answer] --- #### Tips for Understanding the Electron Transport Chain: The electron transport chain (ETC) is a series of complexes that transfer electrons from electron donors to electron acceptors via redox reactions, and couples this electron transfer with the transfer of protons (H+ ions) across a membrane. This process helps to create a proton gradient that drives the production of ATP. - **NADH and FADH₂**: Both are key electron donors to the electron transport chain, but NADH donates electrons at a higher energy level compared to FADH₂. - **ATP**: While ATP is a key product of the ETC, it is not involved in donating electrons to the chain. - **Water**: Water is produced at the end of the electron transport chain when oxygen accepts electrons and protons. It is not an electron donor. Understanding which molecules donate electrons and at which energy levels can help you better grasp how cellular respiration efficiently converts biochemical energy from nutrients into ATP. ---
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