Since oxygen is the final electron acceptor, the process is called aerobic respiration. The reduced species are oxidized by a series of respiratory integral membrane proteins with sequentially increasing reduction potentials, the final electron acceptor being oxygen (in aerobic respiration) or another species (in anaerobic respiration). The equation for aerobic respiration is below. Researchers Are Now Much Closer to Finding Out, Here’s How to Set Up a Livestream on Twitch. Aerobic respiration requires oxygen as the final electron acceptor. What Is the Final Electron Acceptor in Aerobic Respiration. Chemo-trophic micro-organisms vary in terms of their electron acceptors and their energy sources. The final electron acceptor of the anaerobic respiration is not the molecular oxygen as in aerobic respiration. This is a type of dissimilatory nitrate reduction where the nitrate is being reduced during energy conservation, not for the purposes of making organic compounds. In the final stage of cellular respiration, oxygen combines with the electrons and protons to form water. In aerobic respiration, the flow of electrons terminates with molecular oxygen being the final electron acceptor. In aerobic respiration, the final electron acceptor (i.e., the one having the most positive redox potential) at the end of the ETS is an oxygen molecule (O 2) that becomes … Facultative anaerobes, on the other hand are capable of aerobic respiration but can switch to fermentation, an anaerobic ATP-producing process, if oxygen is unavailable. From Grammarly to Hemingway, These Are the Best Free Grammar Check Software Options, The History Behind Harriet Tubman's Journey to the $20 Bill. Adopted a LibreTexts for your class? Name the four stages of aerobic respiration. The electron transport chain is the portion of aerobic respiration that uses free oxygen as the final electron acceptor of the electrons removed from the intermediate compounds in glucose catabolism. What's an S&P 500 Fund and How Do You Invest in One? Both of these processes occur during cell metabolism. However, some types of organisms, including many types of bacteria and other microorganisms, can use different final electron acceptors. Tags: Question 40 . FMN, which is derived from vitamin B2, also called riboflavin, is one of several prosthetic groups or co-factors in the electron transport chain. oxygen. Have questions or comments? Most eukaryotes and prokaryotes use aerobic respiration to obtain energy from glucose. Dr. Gary Kaiser (COMMUNITY COLLEGE OF BALTIMORE COUNTY, CATONSVILLE CAMPUS). Q. Aerobic respiration is different from anaerobic respiration in that aerobic respiration needs... answer choices . E. What is the synthesis of glucose from amino acids called? What Is the Presidential Medal of Freedom? Aerobic respiration is the aerobic catabolism of nutrients to carbon dioxide, water, and energy, and involves an electron transport system in which molecular oxygen is the final electron acceptor. ATP is produced as a product of the electron transport chain, while glucose and CO 2 play a role in earlier processes of cellular respiration. Fermentation does not require oxygen. Legal. Aerobic respiration is the aerobic catabolism of nutrients to carbon dioxide, water, and energy, and involves an electron transport system in which molecular oxygen is the final electron acceptor. carbon dioxide. These can be ions such as sulfur, ferric, manganese (IV), cobalt (III), and Uranium (VI) and compounds such as fumarate, sulfate, nitrate or carbon dioxide. Oxygen (O2), because of its highly electronegative nature, drives aerobic respiration by drawing electrons (e-) of the lowest energy from the electron transport chain, being reduced itself to water (H2O) in the reaction. At the end of the electron transport system, two protons, two electrons, and half of an oxygen molecule combine to form water. Aerobic respiration is the aerobic catabolism of nutrients to carbon dioxide, water, and energy, and involves an electron transport system in which molecular oxygen is the final electron acceptor. The overall reaction is: [ "article:topic", "authorname:kaiserg", "showtoc:no", "license:ccby" ], https://bio.libretexts.org/@app/auth/3/login?returnto=https%3A%2F%2Fbio.libretexts.org%2FBookshelves%2FMicrobiology%2FBook%253A_Microbiology_(Kaiser)%2FUnit_7%253A_Microbial_Genetics_and_Microbial_Metabolism%2F18%253A_Microbial_Metabolism%2F18.3%253A_Aerobic_Respiration, Community College of Baltimore Country (Cantonsville), information contact us at info@libretexts.org, status page at https://status.libretexts.org. Option B - Food -> NADH -> Electron transport chain -> oxygen is the correct sequence of electron travel during aerobic respiration. Oxygen is the final electron acceptor in aerobic respiration. Aerobic respiration is the aerobic catabolism of nutrients to carbon dioxide, water, and energy, and involves an electron transport system in which molecular oxygen is the final electron acceptor. D. https://quizlet.com/103738965/chapter-6-cellular-respiration-flash-cards This electron carrier cytochrome oxidase differs from bacteria to bacteria. chlorophyll. If aerobic respiration does not occur, NADH must be reoxidized to NAD + for reuse as an electron carrier for the glycolytic pathway to continue. answer choices . These include nitrate ions, sulfate ions, or even carbon dioxide. True or False: Oxygen is the final electron acceptor during anaerobic respiration. Give the overall chemical reaction for aerobic respiration. In aerobic respiration, the final electron acceptor is an oxygen molecule, O 2.If aerobic respiration occurs, then ATP will be produced using the energy of high-energy electrons carried by NADH or FADH 2 to the electron transport chain. NAD+. The overall reaction is: C 6 H 12 O 6 + 6O 2 yields 6CO 2 + 6H 2 O + energy (as ATP). In aerobic respiration, the final electron acceptor at the end of the ETS is an osygen molecule that becomes reduced to water by the final ETS carrier. Although oxygen is not the final electron acceptor, the process still uses a respiratory electron transport chain.
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