If we label the two carbons composing the acetyl group of acetyl-CoA with 14C, a radioactive isotope of carbon, and this labeled acetyl-CoA enters the TCA cycle, then which CO2 released by one turn of the TCA cycle will be labeled? 1) Both. 2) Only the CO2 released by the oxidation of alpha-ketoglutarate. 3) Only the CO2 released by the oxidation of isocitrate. 4) Neither.

If we label the two carbons composing the acetyl group of acetyl-CoA with 14C, a radioactive isotope of carbon, and this labeled acetyl-CoA enters the TCA cycle, then which CO2 released by one turn of the TCA cycle will be labeled? 1) Both. 2) Only the CO2 released by the oxidation of alpha-ketoglutarate. 3) Only the CO2 released by the oxidation of isocitrate. 4) Neither.

Biochemistry

6th Edition

ISBN:9781305577206

Author:Reginald H. Garrett, Charles M. Grisham

Publisher:Reginald H. Garrett, Charles M. Grisham

Chapter19: The Tricarboxylic Acid Cycle

Section: Chapter Questions

Problem 22P: Study Figure 19.18 and decide which of the following statements is false. Pyruvate dehydrogenase is...

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