Cellular Respiration Quiz

Isocitrate dehydrogenase

Succinyl-CoA

Succinyl-CoA synthetase

<p>Succinate dehydrogenase; inner mitochondrial membrane</p> Signup and view all the answers

<p>Malate dehydrogenase; NAD+</p> Signup and view all the answers

<p>Acetyl-CoA is the key metabolic intermediate that links glycolysis and the citric acid cycle by carrying the two-carbon molecule acetate from glycolysis into the mitochondrial matrix, where it is further oxidized to form acetyl-CoA by the enzyme pyruvate dehydrogenase.</p> Signup and view all the answers

<p>In the first step of the citric acid cycle, citrate synthase combines the two-carbon acetyl group from acetyl-CoA with the four-carbon molecule oxaloacetate to generate the six-carbon molecule citrate.</p> Signup and view all the answers

<p>In the second step of the citric acid cycle, citrate is isomerized into isocitrate by the enzyme aconitase.</p> Signup and view all the answers

<p>The conversion of pyruvate to acetyl-CoA results in the generation of a molecule of carbon dioxide and the reduction of a molecule of NAD+ to NADH.</p> Signup and view all the answers

<p>The citric acid cycle produces a total of three NADH molecules.</p> Signup and view all the answers