Substrate- Level Phosphorylation Occurs Within a Metabolic Pathway Where Sufficient

Multiple Choice

Substrate- level phosphorylation occurs within a metabolic pathway where sufficient energy is released by a given chemical reaction to drive the synthesis of ATP from ADP and phosphate. Substrate- level phosphorylation is seen in which metabolic pathways) ?

A) Krebs cycle
B) electron transport chain
C) both glycolysis and the Krebs cycle
D) glycolysis
E) All of the above pathways involve steps where substrate level phosphorylation takes place.