Question #5 If glucose is labeled with 14C at its C2 position, where will the label appear in pyruvate? DRAW pyruvate and CIRCLE the 14C.
ANSWER:
If glucose is labeled with 14C at its C2 position then it will appear in c2/c5 carbon of pyruvate
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Question #5 If glucose is labeled with 14C at its C2 position, where will the label...
Question #5 If glucose is labeled with "C at its C4 position, where will the label appear in pyruvate? DRAW pyruvate and CIRCLE the "C.
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...
Glucose labeled with 14C atom in position C-1 is incubated with glycolysis enzymes. what part (%) of pyruvate molecules will be labeled
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...
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...
In a "pulse chase" experiment under anaerobic conditions, 14C glucose is added to an ethanol-producing yeast cell extract just long enough that each intermediate in the ethanol fermentation is labeled with a 14C (pulse). The 14C label is then diluted so that no additional radioactivity is incorporated into the intermediates (chase). 1. What position in ethanol will be labeled with 14C if 14C-glucose labeled at position C-1 is used? 2. Where should the 14C label sit in glucose for it...
Question 7 3 pts A second biochemist also studying metabolism feeds her rats 3-[14C]-alanine (alanine labeled at the methyl group). Alanine can provide carbons for gluconeogenesis because of the reaction catalyzed by alanine aminotransferase. alanine + a-ketoglutarate = pyruvate + glutamate After sacrificing her rats she finds considerable 14C in the glucose. Where is the 14C located in the glucose? C1 C2 C3 C4 C5 C6
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