Enzymes lower the activation energy necessary ... Learn more about the energy-generating processes of glycolysis, the citric acid cycle, and oxidative phosphorylation. Protein surfaces are ...

A second autotrophic pathway (Arnon–Buchanan cycle) uses a reductive citric acid cycle and is found in ... which showed that enzyme activities of the 3-hydroxypropionate cycle are upregulated ...

This enzyme links the two stages of cellular respiration: glycolysis and the citric acid cycle. In doing so, pyruvate dehydrogenase helps regulate the metabolic plasticity of cells. The ...