The most regulated enzyme in glycolysis is a   Hexokinase b   G3P Dehydrogenase c   Pyruvate Kinase d   Phosphofructokinase

During which of the following conversions is NADH+H+ formed in the glycolysis cycle? a. Glyceraldehyde 3-phosphate to 1,3-bisphosphoglycerate b. 1,3-bisphosphoglycerate to 3-Phosphoglycerate c. 2-Phosphoglycerate to Phosphoenolpyruvate d. Phosphoenolpyruvate to Pyruvate

During Krebs cycle, the conversion of isocitrate to alpha-keto glutarate involves all of the following reactions/mechanisms except     Reduction of isocitrate     Reduction of NAD+     Decarboxylation of isocitrate     Oxidation of isocitrate

Which of the following conditions is most likely to lead to the activation of pyruvate dehydrogenase? High concentrations of acetyl-CoA High concentrations of NADH High concentrations of NAD+ High concentrations of CO2

In glycolysis, pyruvate kinase produces what high energy product and what low energy product?

Which of the following enzymes do not catalyze a reaction in the citrate cycle that produces CO2 as a product? Choose one or more: OA. isocitrate dehydrogenase OB. fumarase L C. succinate dehydrogenase O D. succinyl-CoA synthetase

Which of the following Krebs cycle enzymes generates a molecule of FADH2 from FAD? a-ketoglutarate dehydrogenase pyruvate dehydrogenase isocitrate dehydrogenase malate dehydrogenase succinate dehydrogenase

What type of regulation would be expected when anaerobic metabolism is occurring in the muscle? Select all that apply. 1. Activation of pyruvate dehydrogenase kinase 2. Increased levels of calcium to activate pyruvate dehydrogenase phosphatase 3. Phosphorylation of pyruvate dehydrogenase 4. Inhibition of pyruvate dehydrogenase complex 5. Increased levels of NADH to activate citrate synthase 6. Increased levels of NADH to inhibit alpha-ketogluterate dehydrogenase complex 7. Increased levels of acetyl CoA to activate pyruvate carboxylase for gluconeogenesis

Gluconeogenesis occurs in liver and kidney. Which is of the following enzyme are important for gluconeogenesis are expressed exclusively in these tissues? Select one: a. Glucose-6-phosphatase b. Fructose-1,6-Bisphosphatase c. Phosphoenolpyruvate carboxykinase d. Pyruvate carboxylase

in the mitochondria pyruvate is converted into acetyl CoA so then acetyl CoA make its way to the TCA cycle and produces energy sources for oxidative phosphorylation. Pyruvate oxidation transforms pyruvate, a three-carbon molecule, into acetyl, a two-carbon molecule linked to Coenzyme A, generating NADH and releasing one carbon dioxide molecule in process the citric acid cycle is fundamental because runs on acetyl CoA as its fuel.  i need more explanantion