CELL RESPIRATION
OXIDATIVE PHOSPHORYLATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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During which of the following phases does substrate-level phosphorylation take place?
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the citric acid cycle
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glycolysis and the citric acid cycle
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the electron transport chain
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glycolysis
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Explanation:
Detailed explanation-1: -Substrate-level phosphorylation occurs in the cytoplasm of cells during glycolysis and in mitochondria either during the Krebs cycle or by MTHFD1L (EC 6.3.
Detailed explanation-2: -Substrate-level phosphorylation, where a substrate of glycolysis contributes a phosphate to ADP, arises in two steps of the second half of glycolysis to produce ATP.
Detailed explanation-3: -The citric acid cycle also produces 2 ATP by substrate phosphorylation and plays an important role in the flow of carbon through the cell by supplying precursor metabolites for various biosynthetic pathways.
Detailed explanation-4: -So the correct answer is ‘SuccinylCoA
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