Which of these  happens to  acetyl•CoA in the mammalian liver? It can be converted to ketone bodies through ketogenesis. It can give rise to glucose through gluconeogenesis.  It can be used in the pentose phosphate pathway to produce NADPH. It can be oxidized to CO2 for energy production by the citric acid cycle. It can be converted to cholesterol via the isoprenoid pathway.

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

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

When proteins are digested for fuel, they are first broken down into their amino acid components. Amino acids can be further oxidized to generate useful energy for the cell. For example, when one molecule of the amino acid tryptophan is oxidized, one pyruvate molecule and one acetyl CoA molecule are generated. One NADH molecule is also generated during the oxidation of tryptophan into one pyruvate molecule and one acetyl CoA molecule. Below is the general reaction described in the prompt: 1 tryptophan --> 1 pyruvate + 1 acetyl CoA + 1 NADH

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

what metabolic process is this, and why?

Which of the following glycolytic enzymes catalyzes the conversion of fructose-1,6-bisphosphate into the two product molecules dihydroxyacetone phosphate, and glyceraldehyde-3-phosphate? phosphoglycerate kinase pyruvate kinase malate dehydrogenase aldolase phosphofructokinase

Which citric acid cycle enzyme utilizes a similar reaction mechanism to pyruvate dehydrogenase? O Malate dehydrogenase Isocitrate dehydrogenase O Alpha-ketoglutarate dehydrogenase Succinate dehydrogenase

Which of the following glycolytic enzymes must consume ATP during phosphorylation of its preferred substrate molecule? phosphoglycerate mutase pyruvate kinase succinate dehydrogenase hexokinase phosphoglycerate kinase

When acetyl-CoA containing radioactively labeled carbon atoms is fed to cells, the CO, produced is not initially radioactive. However, molecules of citrate and oxaloacetate are radioactive. Only after some time has passed will radioactive CO2 be released. What is the best explanation for this observation?