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Substrate-level phosphorylation is utilized to create ATP in which steps of aerobic cellular respiration?
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3. Energy & Cell Processes
Types of Phosphorylation
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A small amount of ATP is made in glycolysis by which of the following processes?
A
Harnessing energy from the sun
B
Transport of electrons through a series of carriers
C
Transfer of electrons and hydrogen atoms to NAD+
D
Attachment of a free inorganic phosphate (Pi) group to ADP to make ATP
E
Transfer of a phosphate group from a fragment of glucose to ADP by substrate-level phosphorylation
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Understand that glycolysis is the process of breaking down glucose into pyruvate, producing ATP and NADH in the process.
Recognize that ATP production in glycolysis occurs through substrate-level phosphorylation, not oxidative phosphorylation or photophosphorylation.
Identify that substrate-level phosphorylation involves the direct transfer of a phosphate group from a substrate molecule to ADP, forming ATP.
Note that during glycolysis, a phosphate group is transferred from a phosphorylated intermediate of glucose to ADP, resulting in ATP formation.
Remember that this process does not involve electron transport chains or sunlight; it is a direct chemical reaction occurring in the cytoplasm.
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