The step involving ATP, hexokinase and the phosphorylation of glucose to glucose-6-phosphate is

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This step involves the transfer of a phosphate from ATP to glucose by the enzyme hexokinase, resulting in the formation of glucose-6-phosphate. This is an example of substrate-level phosphorylation, as the phosphate is directly transferred from a substrate molecule (glucose) to ADP to form ATP. This step occurs prior to the Krebs cycle and is not part of the electron transport system or photophosphorylation.

The Step Involving ATP, Hexokinase and the Phosphorylation of Glucose