Chapter 9 - Cellular Respiration 1. Krebs cycle oxidative-phosphorylation 6. Be able to identify what is being oxidized and what reduce in a reaction. Proton pumping creates an energy source known as electrochemical gradient .
Fermentation is a reaction that happens after glycolysis.
Gluconeogenesis and Energy Storage and Moblization Many of the reactions of glycolysis are reversible and those that aren't can be by-passed so that starting metabolites like pyruvate and oxaloacetic acid can be anabolized into glucose when energy levels are high in the cell. Liver and muscle cells store glucose as glycogen for easy access in times of need. Liver cells release glucose into the blood to keep the blood levels of glucose constant. The cytosolic enzyme glycogen phosphorylase hydrolyzes glucose from glycogen . The cytosolic glycogen synthetase then adds glucose to glycogen.