Question 3
Glucose labeled with 14C in C-3 and C-4 is completely converted to acetyl-CoA via glycolysis and the pyruvate dehydrogenase complex. What percentage of the acetyl-CoA molecules
formed will be labeled with 14C, and in which position of the acetyl moiety will the 14C label be found? Select the correct answer and explain your reasoning
100% of the acetyl-CoA will be labeled at C-1 (carboxyl).
100% of the acetyl-CoA will be labeled at C-2.
50% of the acetyl-CoA will be labeled, all at C-2 (methyl).
No label will be found in the acetyl-CoA molecules.
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Question 3 Glucose labeled with 14C in C-3 and C-4 is completely converted to acetyl-CoA via...
Question 3 Glucose labeled with 14C in C-3 and C-4 is completely converted to acetyl-CoA via glycolysis and the pyruvate dehydrogenase complex. What percentage of the acetyl-CoA molecules formed will be labeled with 14C, and in which position of the acetyl moiety will the 14C label be found? Select the correct answer and explain your reasoning 100% of the acetyl-CoA will be labeled at C-1 (carboxyl). 100% of the acetyl-CoA will be labeled at C-2. 50% of the acetyl-CoA will...
Question 3 Glucose labeled with 14C in C-3 and C-4 is completely converted to acetyl-CoA via glycolysis and the pyruvate dehydrogenase complex. What percentage of the acetyl-CoA molecules formed will be labeled with 14C, and in which position of the acetyl moiety will the 14C label be found? Select the correct answer and explain your reasoning 100% of the acetyl-CoA will be labeled at C-1 (carboxyl). 100% of the acetyl-CoA will be labeled at C-2. 50% of the acetyl-CoA will...
Question 3 Glucose labeled with 14C in C-3 and C-4 is completely converted to acetyl-CoA via glycolysis and the pyruvate dehydrogenase complex. What percentage of the acetyl-CoA molecules formed will be labeled with 14C, and in which position of the acetyl moiety will the 14C label be found? Select the correct answer and explain your reasoning 100% of the acetyl-CoA will be labeled at C-1 (carboxyl). 100% of the acetyl-CoA will be labeled at C-2. 50% of the acetyl-CoA will...
How many CO2 molecules are released if 2 molecules of glucose are catabolized to acetyl-CoA via the reactions of glycolysis and pyruvate dehydrogenase? a) 4 b) 6 c) 2 d) 1 e) 12
21. Glucose labeled with 14C in C-1 and C-4 gives rise in glycolysis to pyruvate labeled in: A) its methyl carbon B) all three carbons C) its carbonyl carbon D) its carboxyl carbon E) A and D
If a molecule of glucose is labeled with 14C at position 1 proceeds through glycolysis, where will the radioactive label end up? a) At the carboxyl carbon of all the pyruvate produced b) At the carboxyl carbon of half of the pyruvate produced. c) At the methyl carbon of half of the pyruvate produced. d) At the methyl carbon of all the pyruvate produced. e) At the carbonyl carbon of all the pyruvate produced. f) At the carbonyl carbon of...
OH cr nC-labeled glucose at C6 13C-labeled pyruvate at C3 a) When glucose is enriched with C at C6, it will form pyruvate enriched at C3 (above). The labeled Where does the label exist in succinyl-CoA after the 'C acetyl-CoA is processed in the first round of TCA (after a single action by the first four enzymes in TCA). Circle the atom/atoms where the label exists on the molecule below d pyruvate will be converted into 1'C acetyl-CoA and then...
If glucose labeled with 14C at C-2 were metabolized in the liver, the first radioactive pyruvate formed would be labeled in (pick from list given below) i) all three carbons ii) its carbonyl carbon iii) its carboxyl carbon iv) its methyl carbon Ali B) ii C) iii D) iv E) A and C
Glucose labeled with 14C atom in position C-1 is incubated with glycolysis enzymes. what part (%) of pyruvate molecules will be labeled
Question: You buy a sample of glucose that has the radioactive carbon-14 (C) isotope at the second position (Carbon #2). All other carbon positions in the glucose molecules have the "C isotope. "C is only a label and does not alter the biochemical behavior of the molecules in which it is found. This glucose sample is mixed with all the enzymes derived from liver cells, which initially contain no other C-labeled chemicals. A) Draw the Haworth structure of glucose and...