2 What molecule is the final electron acceptor at the end of the Electron transport chain? An atom with a high electronegativity is an electron acceptor because it has a high affinity for electrons. Thus, a different electron acceptor is needed to accept the electron that the single photosystem will release and bring it to the Calvin cycle. Solution: Last step of aerobic respiration is oxidation of reduced co-enzymes, i.e., NADH 2, and FADH 2, by molecular oxygen through FAD, CoQ (ubiquinone), Cyt. NADH and FADH2 transfer their electrons to 5. Acetogenesis is a type of microbial metabolism that uses hydrogen (H 2) as an electron donor and carbon dioxide (CO 2) as an electron acceptor to produce acetate, the same electron donors and acceptors used in methanogenesis. Which of the following statements about nicotinamide adenine dinucleotide (NAD +) is correct? during aerobic cellular respiration the final electron acceptor is quizlet. Electrons donated by the NADH molecules passed through several different proteins in ETC to generate the proton gradient in the mitochondrial intermembrane space. C. NADPH And ATP Are Both Synthesized From The Light Reactions Within Photosystem I. D. Photosystem I Generates ATP, Whereas Photosystem II Generates NADPH. during these redox reactions, NAD+ is reduced,which then oxidizes an electron acceptor in the electron … b) NADH is the initial electron acceptor in many metabolic oxidation reactions. Acetyl CoA is involved in the 2. 4)Both use electron transport chains to pump protons against their concentration gradient. oxygen. a.Proteins b.Glucose c.Fatty acid d.Alcohol e.Water 25.The oxidation of glucose to two molecules each of pyruvate, ATP, and NADh is Fermentation, but not respiration, is an example of a catabolic pathway. Log in for more information. Added 5 minutes 0 seconds ago|1/22/2021 11:25:15 AM Fermentation occurs when an organic energy source is degraded and oxidized without the use of an exogenous electron acceptor; when the energy source is degraded and oxidized in the absence of this electronic acceptor, the process is known as respiration. C) cytochrome c is water soluble and operates between the inner and outer mitochondrial membranes D) heart muscle has a high rate of oxidative metabolism, and therefore requires twice as much cytochrome c as QH2 for electron transfer to proceed normally. The flow of electrons leads to the build up of_ 6. Chemo-trophic micro-organisms vary in terms of their electron acceptors and their energy sources. It is an oxidizing agent that, by virtue of its accepting electrons, is itself reduced in the process. 1.3 How much electron acceptor is needed? 1% 5% 6% 88% 1. View solution. 3. food web) through one or more of the following processes: Aerobic Respiration (aerobic) ⎯ Oxidation of organic compounds to CO 2 and H 2O, yielding energy for biological work. Which of the following is necessary for oxidative phosporylation to occur? It can use the empty 2 p z orbital to pick up a pair of nonbonding electrons from a Lewis base to form a covalent bond. Substances have different tendencies to donate or accept electrons. A. oxygen B. carbon dioxide C. glucose D. NADH The movement of which ion across the membrane from the intermembrane space to the matrix causes ATP synthase to spin and make ATP A. Na + ions B. oxygen C. H + ions D. water Which stage of cellular respiration produces the most ATP? Krebs cycle occurs in the_ 8. When O2 and H2 […] 4. Glycolysis occurs in the 7. Where in the cell does glycolysis occur? When a really good donor meets a great acceptor, the chemical reaction releases a lot of energy. cytoplasm. Examples of electron acceptor in the following topics: Electron Donors and Acceptors in Anaerobic Respiration. Last electron acceptor of PS I is 1:37 000+ + 1.2k + 1.2k + Oxidative phosphorylation. Answer. 2)Both contain integral proteins that transfer glucose to enzymes located on the inside of the membrane. Substrate-level phosphorylation is unique to fermentation. The electron transport chain is, in essence , aseries of redox reactions that conclude cellular respiration. An electron acceptor is a chemical entity that accepts electrons transferred to it from another compound. B) Oxygen is eventually reduced by the electrons to form water. Electron acceptors participate in electron-transfer reactions.In this context, the oxidizing agent is called an electron acceptor and the reducing agent is called an electron donor. Oxygen (O2) is the best electron acceptor and is used in many aerobic reactions (reactions with oxygen). BF 3 can therefore act as an electron-pair acceptor, or Lewis acid. View solution. *Response times vary by subject and question complexity. Which of the following processes produces the most ATP? 1)Both contain integral proteins that synthesize glucose for the generation of ATP. The final electron acceptor of aerobic respiration is _____. Get Your Custom Essay on. The first electron acceptor of cellular respiration is _____. a. Auxin and gibberellin promote stem elongation. The final electron acceptor at the end of the electron transport chain is water, resulting in the formation of water. Cellular respiration begins when electrons are transferred from NADH and FADH 2 —made in glycolysis, the transition reaction, and the Krebs cycle—through a series of chemical reactions to a final inorganic electron acceptor (either oxygen in aerobic respiration or non-oxygen inorganic molecules in anaerobic respiration). Which of the following is the correct sequence of stages in cellular respiration? Acetogenesis is a type of microbial metabolism that uses hydrogen (H 2) as an electron donor and carbon dioxide (CO 2) as an electron acceptor to produce acetate, the same electron donors and acceptors used in methanogenesis. View solution. glycolysis oxidative phosphorylation fermentation krebs cycle. Median response time is 34 minutes and may be longer for new subjects. Question & Answer: which coenzyme is the electron acceptor in the following reaction?….. which coenzyme is the electron acceptor in the following reaction? A) Glucose B) FADH2 C) FAD D) ATP E) NADH F) NAD+ Needs help extra stuck Electron acceptors are sometimes mistakenly called electron receptors. An atom with a high electronegativity is an electron donor because it has a high ionization energy. Question: Which Of The Following Statements Is TRUE About The Light Reactions? a) NAD + is the initial electron donor in many metabolic oxidation reactions. Oxygen (O2) is the terminal electron acceptor for the electron transport chain (ETC). The last or ultimate electron acceptor in the electron transport system is. In anaerobic respiration, a molecule other than oxygen is used as the terminal electron acceptor in the electron transport chain. If the injected mass of the electron acceptor is too low, the electron acceptor (e.g. Hydrogen gas (H2) is a good electron donor. 8. electron transport chain. Only respiration oxidizes glucose. 000+ + 500+ + 500+ + Which of the following organelle is concerned with generation of ATP through electron transport and oxidative phosphorylation? e.It is the final electron acceptor at the end of the electron transport chain 24.Oxidizing which of the following substances yields the most energy? Don't use plagiarized sources. 9. The correct sequence of electron acceptor in ETS in ATP synthesis is A. Cyt a, a b, c. B. Cyt b c, a, a 3 C. Cyt b c, a 3 , a. D. Cyt c b, a, a 3 Medium. A) The electrons gain energy as they move from one electron acceptor to another. IF oxygen is not present, the electron transport chain will still proceed . C) The electrons release large amounts of energy each time they are transferred from one electron acceptor to another. 2. B) cytochrome c is a two-electron acceptor, whereas QH2 is a one-electron donor. Which of the following is a true distinction between fermentation and cellular respiration? b, Cyt. 3)Both fix carbon dioxide for use as an electron acceptor. The answer in option B is also correct . c, Cyt. glycolysis, citric acid cycle, electron transport. dissolved oxygen, sulfate) will not meet bioremediation demands and long-term performance will be limited. c,, Cyt. Conversely, overestimation of the required electron acceptor mass leads to increased costs with little improvement January 16, 2021 by Filed under Uncategorized. Choose the correct answers from the alternatives given : Which of the following is a true distinction between fermentation and cellular respiration? D) Glucose is eventually reduced by the electrons to form water. Therefore, if the final electron acceptor is removed, there will be no electron transport chains which generated the PMF, for pumping H+ across into the thylakoid membrane of the chloroplast, to generate the electrochemical gradients, needed for the energy for … Which of the following statements is false? ; This method still incorporates the respiratory electron transport chain, but without using oxygen as the terminal electron acceptor. The final electron acceptor during electron transport is produces the most ATP 3. An atom with high electronegativity can be an electron In aerobic organisms undergoing respiration, electrons are shuttled to an electron transport chain, and the final electron acceptor is oxygen. NADH is oxidized by the electron transport chain in respiration only. NAD+. An atom, molecule, etc., which can receive electrons from an electron donor. Anaerobic respiration is respiration using electron acceptors other than molecular oxygen (O 2).Although oxygen is not the final electron acceptor, the process still uses a respiratory electron transport chain. O O B. Photosystem II Generates ATP, Whereas Photosystem I Generates NADPH. The final electron acceptor during oxidative phosphorylation is: oxygen water carbon dioxide ATP. Explain ETS? O 2 is the final electron acceptor (All aerobic organisms -- eukaryotes and prokaryotes). Select One: A. ATP Is The Final Electron Acceptor. Which of the following statements is true? 7. 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