What is the final electron acceptor in the electron transport chains of organisms that conduct anaerobic respiration?
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Terms in this set (15)Complete the sentences with the appropriate words. ... The role of ATP ... Match the reactants and products with the specific pathways of glycolysis. Priming Reactions: Produces 2 ADP, Uses 2 ATP Red blood cells do not contain mitochondria. How do red blood cells generate most of their ATP? Through glycolysis coupled with lactic acid fermentation Krebs cycle and oxidation A second oxidation produces succinyl-CoA and 2 electrons. Electron transport chain ... 2,4-Dinitrophenol (DNP) is a drug that can shuttle protons across biological membranes. In the 1930's it was used as a diet pill. Do you think this drug was effective in helping people to lose weight? Yes, by moving protons directly across membranes, this drug disrupted the proton gradient needed to make ATP. Because ATP production is disrupted, the body will attempt to compensate by breaking down more fuels, such as fat. In cellular respiration, what pathway directly generates ATP for the cell? Glycolysis What is a final electron acceptor in the electron transport chains of organisms that conduct anaerobic respiration? Carbon dioxide Correctly indicate whether each term is relevant for aerobic respiration, anaerobic respiration or both. Aerobic Respiration: Genreates the most ATP, Is a process carried out by humans What are fats primarily broken down and converted into so that energy stored within these molecules can be harvested? Acetyl-CoA Animation: How Glycolysis Works In glycolysis, glucose is converted to The NET result of a single round of glycolysis is the formation of Under anaerobic conditions, the end-product of glycolysis is converted to Why are two ATP required during the first phase of glycolysis? Which of the following statements about the products of glycolysis is TRUE? pyruvate. 2 NADH and 2 ATP. lactic acid. In order to create a high energy molecule that will spontaneously split into two 3-carbon molecules A cell may either oxidize or reduce pyruvate, depending on cellular conditions Animation: How the Krebs Cycle Works Before entering the Krebs cycle, pyruvate is converted to A single "turn" of the Krebs cycle will yield The initial reaction of the Krebs cycle involves the addition of a The Krebs cycle occurs in the mitochondrion. A single "turn" of the Krebs cycle involves three different decarboxylation reactions. Carbon dioxide (CO2) is produced during aerobic respiration. Which of the following statements is TRUE? acetyl-CoA. 1 ATP, 3 NADH, and 1 FADH2. 2-carbon molecule to a 4-carbon molecule. True. False CO2 is often the product when an organic molecule is oxidized. Animation: Electron Transport System and ATP Synthesis Arrange the following electron acceptors in order from highest energy to lowest energy. 1 = Cytochrome c Electrons are brought to the electron transport system by the oxidation of The movement of protons through ATP synthase occurs from the When oxygen accepts electrons, water is produced as a byproduct. The formation of ATP as a result of the activity of the electron transport system is termed substrate-level phosphorylation. Creation of a proton gradient by the electron transport chain represents Why is formation of ATP by ATP synthase in the mitochondria known as oxidative phosphorylation? 1, 3, 2 NADH and FADH2. intermembrane space to the matrix. True False potential energy A proton gradient created by the redox reactions of the electron transport chain is used to drive the synthesis of ATP Animation: Electron Transport System and Formation of ATP The electron transport chain in bacteria is located... During aerobic respiration, the last carrier protein transfers a pair of electrons to... The function of the enzyme ATP synthase is to... How do electrons enter the electron transport chain? If the inner mitochondrial membrane was freely permeable to protons (H+) what would be the most devastating result to the cell? Why must the electron transport chain proteins and molecules be embedded in a membrane? The electron transport chain consists of a series of membrane-bound carriers that shuttle protons and electrons to NADH. in the cell membrane. oxygen. utilize the energy of the proton motive force to convert ADP to ATP. By the oxidation of NADH ATP would not be produced by oxidative phosphorylation. 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What is the final acceptor of electrons in the electron transport chain?The final electron acceptor is oxygen (O2). Oxygen has a high electronegativity; thus, oxygen's high affinity for electrons makes it an ideal acceptor for low-energy electrons. With the electrons, hydrogen is added to oxygen forming water as the final product.
What is the final electron acceptor in anaerobic glycolysis?These reducing equivalents then enter the electron transport chain, leading to the production of 32 ATP per molecule of glucose. Because the electron transport chain requires oxygen as the final electron acceptor, inadequate tissue oxygenation inhibits the process of oxidative phosphorylation.
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