A Research Scientist Is Studying Biochemical Reactions That Take Place

question 134

Multiple Choice

A research scientist is studying biochemical reactions that take place in the liver.  He cultures hepatocytes in a growth media enriched with glutamate labeled with nitrogen isotopes.  After some time, he finds that the nitrogen isotopes are transferred to oxaloacetate, forming aspartate in the process.  Which of the following substances is most likely involved in this reaction?

• A)Biotin
• B)Folic acid
• C)Niacin
• D)Pyridoxine
• E)Riboflavin
• F)Thiamine

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