Glycolysis
In glycolysis, ATP is formed by the transfer of a high-energy phosphate from 1,3-bisphosphoglycerate to ADR No such high-energy phosphate donor has ever been isolated in mitochondria because
no such phosphate donor exists
the techniques for isolating the phosphate donor are not refined enough
None of these
the high-energy phosphate donor is very short-lived and difficult to isolate
EXAMIANS