In cellular respiration, the final electron acceptor is an oxygen atom. In their energy-depleted condition, the electrons unite with an oxygen atom. The electron–oxygen combination then reacts with two hydrogen ions (protons) to form a water molecule (H2O) The role of oxygen in cellular respiration is substantial. Jun 11, 2019 · The cellular respiration process occurs in eukaryotic cells in a series of four steps: glycolysis, the bridge (transition) reaction, the Krebs cycle and the electron transport chain. The final two steps together comprise aerobic respiration. The total energy yield is 36 to 38 molecules of ATP.
Nov 15, 2008 · final electron acceptor gets reduced when it accepts an electron.In case of aerobic respiration oxygen is the final electron acceptor and it get reduced to water. in anaerobic respiration nitrate,sulphate reduced to niytrite and hydrogen sulphide respectivlely. Cellular respiration uses oxygen as the electron acceptor in the formation of ATP, while fermentation uses inorganic donors, such as sulfur and methane in the formation of ATP. 2. Both cellular respiration and fermentation convert nutrients from sugar, amino acids and fatty acids to form ATP, but they differ in their processes and levels of energy that they release. Since oxygen acts as the final electron acceptor, it is absolutely essential to the process of cellular respiration. Without oxygen, this process cannot be completed. Furthermore, the bulk of the ATP, the fundamental energy for the cells, is created by the electron transport chain. Campbell's Biology: Concepts and Connections, 7e (Reece et al.) Chapter 6 How Cells Harvest Chemical Energy 6.1 Multiple-Choice Questions 1) Which of the following statements regarding photosynthesis and cellular respiration is true? A) Photosynthesis occurs in chloroplasts, and cellular respiration occurs in mitochondria. What environmental cycle involves photosynthesis and respiration as a major process? The carbon-hydrogen-oxygen cycle: What purpose does oxygen serve in respiration? It is the final electron acceptor on the electron transport chain. What is the maximum number of ATP generated in aerobic respiration? 36
What is the purpose of the Calvin-Benson cycle? A. the formation of phosphorylated pentose sugars from glucose-6-phosphate B. the catabolism of glucose to pyruvic acid using enzymes different from those of glycolysis The final electron acceptor of aerobic respiration is ... The flow of protons back through membrane-bound ATP synthase by chemiosmosis is known as ...
Aerobic Respiration. C 6 H 12 O 6 + 6O 2 → 6CO 2 + 6H 2. O + 38 ATP The Krebs cycle and electron transport take place in the mitochondria. The Krebs cycle and electron transport maximize ATP yield . 38 ATPvs.2 ATP for fermentation Sep 08, 2017 · In order for cell respiration, to completely oxidize an organic substrate, requires an electron acceptor with high electronegativity at the end of the electron transport chain. Depending on this acceptor, respiration is classified into (regardless of external environmental conditions): As a final electron acceptor, fluorine would be great! Its higher electronegativity compared to oxygen would allow for a longer electron transport chain, and result in more H+ being pumped into the intermembrane space. to function as the final electron acceptor in the electron transport chain The only place that O2 participates in cellular respiration is at the end of the electron transport chain, as the final electron acceptor. Oxygen's high affinity for electrons ensures its success in this role. Oxygen is an essential component for aerobic respiration because it is the final electron acceptor in the electron transport chain.