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Concept explainers
Interpretation: The processes that involve the conversion of a
Concept introduction: Pyruvate is the end product in the glycolysis. The glycolysis pathway takes place under anaerobic conditions. Aerobic reactions need oxygen while anaerobic reaction does not need any oxygen.
The production of the fate of pyruvate varies with the nature of the organism and the cellular conditions. The three common fates of pyruvate are as follows:
Fermentation is defined as the biochemical anaerobic process by which NADH is oxidized to
The molecule that contains three carbon is called a
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Chapter 24 Solutions
EBK GENERAL, ORGANIC, AND BIOLOGICAL CH
- If 14CO2 (radioactive carbon) were incorporated into the TCA cycle via the Pyruvate Carboxylase reaction which of the following molecules would contain radioactive carbon? a. Oxaloacetate b. Citric Acid c. Isocitrate d. Alpha-ketoglutarate e. Succinyl-CoA f .Succinate g. Fumarate h. Malatearrow_forwardThe committed step of glycolysis is catalyzed by which of the follwing enzymes? a. aldolase b. hexokinase c. Phosphofructokinase-1 d. Pyruvate kinasearrow_forwardFluoride is an inhibitor of which of the following glycolytic enzymes? A. Glyceraldehyde 3 po4 dehydrogenase B. Inolase C. Pyruvate kinasa D. 1,3 Bisphosproglycerate kinasearrow_forward
- Which intermediates of glycolysis are used to generate ATP by substrate-level phosphorylation? a. Fructose-1,6-bisphosphate b. Glyceraldehyde-3-phosphate c. 1,3-Bisphosphoglycerate d. 2-Phosphoglycerate e. Phosphoenolpyruvatearrow_forwardIn the reaction catalyzed by malate dehydrogenase, which of the following molecules is classified as the reduced donor? a. Malate b. Oxaloacetate c. Fumerate d. FAD e. FADH2 f. NAD+ g. NADHarrow_forwardGluconeogensis uses nearly all of the same enzymes as those in ____, and is a(an) ______ reaction. Select one: a. Citric Acid Cycle anabolic b. citric acid cycle, catabolic c. glycolysis, anabolic d. glycolysis, catabolic e. none of the abovearrow_forward
- A patient who has been drinking large amounts of alcohol for long periods of time shows thefollowing symptoms: apathy, loss of memory, and a rhythmical to-and-fro motion of the eyeballs.Which of the following reactions are most likely to be affected in the patient? A. Conversation of pyruvate to acetyl-CoA B. Conversation of a-ketoglutarate to succinyl-CoA C. Both A and B D. Neither A nor Barrow_forwardIn the last step of glycolysis, phosphoenolpyruvate (PEP) is converted to pyruvate and during this reaction ATP is synthesized. Based on the fact that ATP is synthesized, which of the following enzymes would most likely catalyze this reaction? a. enolase b. pyruvate kinase c. aldolase d. pyruvate isomerase e. pyruvate dehydrogenasearrow_forwardThe rate limiting and committed step of the pentose phosphate pathway is catalyzed by which of the following enzymes? A. Glucose-6-phosphate dehydrogenase B. Hexokinase C. 6-Phosphogluconate dehydrogenase D. Transketolasearrow_forward
- Which of the following number of products from the Krebs Cycle is a manifestation of 4 pyruvate molecules generated from glycolysis? A. 2 ATP, 6 NADH, 2 FADH₂ B. 3 ATP, 9 NADH, 3 FADH₂ C. 4 ATP, 4 NADH, 4 FADH₂ D. 4 ATP, 12 NADH, 4 FADH₂arrow_forwardGlyceraldehyde 3-phosphate dehydrogenase is used to do which of the following steps of glycolysis Select one: a. 1,3 Bisphosphoglycerate is converted to 3-phosphoglycerate b. Phosphoenolpyruvate is converted to pyruvate c. 2-phosphoglycerate is converted to Phosphoenolpyruvate d. Glyceraldehyde-3-phosphate is converted to 1,3 Bisphosphoglycerate e. Fructose-6-phosphate is converted to Fructose-1,6,bisphosphate f. Dihydroxyacetone (Glycerone Phosphate) is converted to Glyceraldehyde-3-phosphate g. Fructose-1,6 Bisphosphate is converted to Dihydroxyacetone and Glyceraldehyde-3-phosphate h. Glucose-6-phosphate is converted to Fructose-6-phosphate i. 3-phosphoglycerate is converted 2-phosphoglycerate j. Glucose is converted to Glucose-6-phosphatearrow_forwardWhich of the following reactions correspond to the decarboxylation step during ketone body formation? A. 2 acetyl-CoA → acetoacetyl-CoA B. ß-hydroxybutarate → acetoacetate C. Acetoacetate → acetone D. HMG-CoA → mevalonatearrow_forward
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