Glycolysis produces ATP and Gluconeogenesis consumes ATP. If both are operational at the same time: There is no net energy change. ATP produced in one pathway is consumed in the other. Results in net gain of ATP. Energy consumed is less than the energy produced. Results in net loss of ATP. Energy consumed is greater than the energy produced. Simultaneous operation of the two pathways normally does not occur. But it can occur if one organ carries out glycolysis and a different organ carries out gluconeogenesis. both (2) and (4)
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Glycolysis produces ATP: This is true, as glycolysis generates 2 ATP molecules per glucose molecule. Show more…
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Glycolysis produces ATP by phosphorylation of ATP unlike phosphorylation that is driven by the proton motive force. At the end of glycolysis, other than pyruvate and ATP, the molecule contains most of the free energy that will be used later to make more ATP. The electrons carried by FADH2 pump fewer into the intermembrane space because they transfer their electrons to the membrane protein of the transport chain.
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Glycolysis is the first step in cellular respiration. This step-by-step process is run with the help of 10 different enzymes as glucose is modified and eventually changed into two molecules of pyruvate. ATP is used and produced along the way. An accumulation of ATP that is not used by the cell can alter this process by interfering with the third enzyme, thus temporarily shutting or slowing glycolysis down. As ATP is used up by the cell and drops to a lower level, the interference with the third enzyme ceases and glycolysis continues. Such regulation of this metabolic pathway is the result of: a. catalytic feedback b. positive feedback c. negative feedback d. bioinformatics regulation
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