Which of the following enzymes consumes one molecule of NADH, during anaerobic fermentation in yeast, as it converts a two-carbon substrate molecule into a two-carbon product molecule? succinate dehydrogenase pyruvate decarboxylase C. isocitrate dehydrogenase lactate dehydrogenase alcohol dehydrogenase

Which of the following statements about the Krebs Cycle is true? There may be more than one answer. Select any and all that apply. It is a linear 10 step pathway It generates ATP molecules directly through oxidative phosphorylation It produces two molecules of carbon dioxide It begins with acetyl coenzyme A and oxaloacetate combining It converts glucose to carbon dioxide It is a point of entry for the products of amino acid catabolism to be converted into energy It is an anaerobic process that produces molecules for an aerobic process that comes later The first step is the breakdown of glucose into glyceraldehyde-3-phosphate

Which enzyme uses ATP to phosphorylate a substrate during glycolysis? - Phosphoglycerokinase - Phosphofructokinase 1 - Pyruvate kinase - Hexokinase - Glyceraldehyde-3-phosphate dehydrogenase

Complete the kreb cycle

Complete the following table. Enter the number of molecules produced in each process during the complete oxidation of one molecule of glucose.  Enter a 0 if none are produced.      ATP NADH FADH2 CO2 H2O Acetyl CoA Pyruvate Glycolysis               Pyruvate Oxidation               Citric Acid Cycle               ETC and Chemiosmosis

Organisms growing anaerobically cannot perform glycolysis for long without reducing the pyruvate from glycolysis into another compound, most commonly to lactate or to ethanol plus CO2. Both of these reactions are given below in their unbalanced forms. Explain in one sentence why one of these reducing steps is needed to sustain anaerobic glycolysis.

Which of the following reactions/ pathways does NOT produce NADH? Payoff phase of glycolysis Oxidative deamination of glutamine β-oxidation of fatty acid Conversion of pyruvate to lactate Conversion of pyruvate to acetyl CoA

Citrate synthase is inhibited by: NAD+ ADP NADH oxleoacetate All of the above None of the above

Which of the following is true about comparing the α-ketoglutarate dehydrogenase complex and the pyruvate dehydrogenase complex? Group of answer choices They catalyze reactions that produce the exact same set of products They are both dehydrogenase complexes, but have very different structures They both catalyze reactions that oxidize NADH to NAD+ They both use the same E3 enzyme component   Which of the following best describes stage 2 of the citric acid cycle? Group of answer choices ATP production by the electron transport chain production of acetyl CoA regeneration of oxaloacetate release of 2 carbons as carbon dioxide

Consider the reaction shown, 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