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- Which of the following is NOT one of the three forms of stored biological energy interconverted in chemiosmosis? O Photorespiration O Energy stored in chemical gradients across membranes O Chemical bond energy O Energy stored in electrical gradients across membranesWhich of the following is true about substrate level phosphorylation? It involves ATP synthase It involves the transfer of phosphate groups by dehydrogenase enzymes It only occurs in the presence of oxygen It requires energy released from facilitated diffusion of protons down their electrochemical gradient It is used to make ATP during the Calvin cycleWhich of the following BEST describes the function of the electron transport system? Energy absorbed by the cytochromes in the system is converted to ATP. The system functions to produce ATP by chemiosmosis in the absence of oxygen. Energy lost from high-energy electrons causes the oxidation of glucose. Energy lost from high-energy electrons results in ATP production by chemiosmosis.
- Why does a chemoautotroph sometimes need to run its electron transport chain backwards? To generate ATP which is not made when the transport chain is run forwards To generate proton motive force which is not made when the transport chain is run forwards To generate NAD+ which is not made when the transport chain is run forwards To generate NADH which is not made when the transport chain is run forwards To generate glucose which is not made when the transport chain is run forwardsWhich of the following best describes the net transfer of energy that occurs during the process of cellular respiration? solar energy from the sun is converted into chemical energy that is stored in the bonds of glucose molecules chemical energy that is stored in the bonds of glucose molecules is converted to energy stored in ATP molecules energy stored in the bonds of ATP molecules is released by breaking off the bond with the last phosphate group during cellular respiration Thermal energy from making smores is converted into chemical energy in the bonds of glucose moleculesWhich of the following statements best explains why anaerobic respiration releases energy from organic compounds Anaerobic respiration partially oxidizes glucose, which is an organic compound This happens during glycolysis The result of the glycolysis is the net production of 2 ATP molecules which are used by the cell for energy Anaerobic respiration partially oxidizes glucose, which is an inorganic compound This happens during glycolysis The result of the glycolysis is the net production of 4 ATP molecules which are used by the cell for energy Anaerobic respiration partially oxidizes glucose, which is an organic compound This happens during glycolysis The result of the glycolysis is the net production of 4 ATP molecules which are used by the cell for energy Anaerobic respiration fully oxidizes glucose, which is an organic compound This happens during glycolysis The result of the glycolysis is the net production of 4 ATP molecules which are used by the cell for energy
- Which of the following regarding the Electron Transport Chain is INCORRECT? It can accept electrons from the Glycerol 3-Phosphate Shuttle It sets up the proton motive force Free energy from the exergonic electron flow is coupled to the endergonic transport of protons out of the matrix Electrons flow through electron acceptors/donors from a high reduction potential to a lower reduction potentialDescribe what is happening in each step of the electron transport chain. Complex I Complex II Q Complex III Cyt c Complex IVSubstrate level phosphorylation occurs in all of the following except: fermentation glycolysis electron transport chain Krebs cycle
- Which of the following are stages of electron transfer phosphorylation? Select all that apply. Oxygen collects electrons from the end of the electron transfer chain to combine with hydrogen ions to form water. The electron transfer chain fuels active transport of hydrogen ions from the matrix to the intermembrane space. Hydrogen ion flow through an ATP synthase produces ATP. The NADH and FADH produced in the prior steps of aerobic respiration deliver electrons and hydrogen ions to the electron transfer chain.The role of water in the thylakoid electron transport chain is most similar to which molecule in the mitochondrial electron transport chain? NADH H+ 02 ADP Complex IThe anaerobic, chemoautotrophic archaeobacterium Methanococcus jannaschii uses which of the following carbon-fixation pathways to obtain organic carbon from CO2? cell bio the Hill reaction the Wood-Ljungdahl pathway the Calvin cycle oxygenic photosynthesis the Krebs cycle