Question

The Krebs cycle produces electron carrier molecules. Where do these carrier molecules deliver the electrons produced in the Krebs cycle? a lactic acid fermentation b the electron transport chain c glycolysis d alcohol fermentation

Answer 1

The electron carrier molecules produced in the Krebs cycle, namely NADH and FADH2, deliver the electrons to **b) the electron transport chain**. In the electron transport chain, these electrons are used to create a proton gradient that ultimately drives the production of ATP through oxidative phosphorylation.