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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

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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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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