The CO2 produced in one round of the citric acid cycle does not originate in the acetyl carbons that entered that round. If acetyl-CoA is labeled with 14C at its carbonyl carbon, how many rounds of the cycle are required before 14CO2 is released? write out the whole pathway until 14CO2 is released.

Biology (MindTap Course List)
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ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
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Chapter8: How Cells Make Atp: Energy-releasing Pathways
Section: Chapter Questions
Problem 3TYU: Before pyruvate enters the citric acid cycle, it is decarboxylated, oxidized, and combined with...
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1. 

The CO2 produced in one round of the citric acid cycle does not

originate in the acetyl carbons that entered that round. If acetyl-CoA is

labeled with 14C at its carbonyl carbon, how many rounds of the cycle

are required before 14CO2 is released?

write out the whole pathway until 14CO2 is released.

Expert Solution
Step 1

The series of chemical reactions that occur inside the living body for the production of energy are collectively known as metabolic reactions and the process is metabolism. These reactions play an important role in the body and are helped by the class of proteins known as enzymes. The product of metabolism or metabolic pathways is known as metabolites. Metabolism is divided into two categories, these are:

  • Catabolism
  • Anabolism
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