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to accept high energy electrons
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What molecule does fermentation provide to glycolysis?
Pyruvic acid is made during glycolysis and is later used in fermentation.
What happens when no NAD plus is present during glycolysis?
Without NAD+ in glycolysis, the conversion of glyceraldehyde-3-phosphate to 1,3-bisphosphoglycerate cannot occur, halting the production of ATP. As a result, glycolysis is inhibited, and the cell's ability to generate energy through this pathway is compromised.
Is NAD oxidized or reduced during glycolysis?
NAD is reduced to NADH during glycolysis.
Can high levels of NADH and low levels of NAD plus stimulate glycolysis?
No it cannot. NADH inhibits glycolysis, the Krebs Cycle and the electron transport chain. HIGH levels of NAD however does stimulate glycolysis but High levels of NADH and low levels of NAD does not stimulate glycolysis but rather inhibits it.
What molecule is regenerated for glycolysis during fermentation?
NAD+ is the molecule that is regenerated for glycolysis during fermentation. NAD+ is essential for glycolysis to continue in the absence of oxygen by accepting electrons from glucose breakdown.
What is an important example of an electron acceptor that functions in glycolysis?
NAD+ (nicotinamide adenine dinucleotide) is an important electron acceptor in glycolysis. It accepts electrons during the conversion of glyceraldehyde-3-phosphate to 1,3-bisphosphoglycerate, which is a crucial step in the production of ATP.
What regenerates NAD plus as pyruvate is converted to ethanol or lactate?
During fermentation, NADH is oxidized back to NAD+ in order to continue glycolysis. This occurs by passing electrons from NADH to pyruvate to form either ethanol or lactate, depending on the organism. This process of regenerating NAD+ allows glycolysis to continue in the absence of oxygen.
Why does nad become nadh plus h instead of just nadh during glycolysis?
During glycolysis, NAD+ acts as an electron carrier molecule. It accepts two electrons and a proton to form NADH. This is important for the oxidation-reduction reactions that occur during glycolysis, allowing for the transfer of electrons and the generation of ATP.
What would happen in fermentation if NAD plus is not regenerated?
If NAD+ is not regenerated during fermentation, glycolysis would be blocked as it depends on the continuous regeneration of NAD+ to continue producing ATP. Without NAD+, the conversion of pyruvate into lactate or ethanol would not occur, leading to a buildup of pyruvate and ultimately halting the production of ATP in the absence of oxygen.
A. both NAD plus and FAD b. NAD plus only c. the electron transport chain d. FAD only What electron carrier or carriers function in the Krebs cycle?
A. both NAD plus and FAD
What is the recycling of NAD plus under anaerobic conditions?
Under anaerobic conditions, NAD+ can be regenerated through fermentation processes that do not require oxygen. During fermentation, pyruvate produced from glycolysis is converted into various end products like lactate or ethanol, which helps regenerate NAD+ from NADH. This allows for continued glycolysis and ATP production in the absence of oxygen.
What compound must be generated during lactic acid fermentation for glycolysis to continue?
During lactic acid fermentation, NAD+ must be regenerated for glycolysis to continue. In the absence of oxygen, NADH produced in glycolysis is converted back to NAD+ when pyruvate is reduced to lactic acid. This regeneration of NAD+ allows glycolysis to persist, enabling the production of ATP in anaerobic conditions.
