13. Under some conditions, preparations of intact mitochondria will quantitatively convert fatty acids to acetoacetate. If palmitate labeled with 1"C in C-4 is added to such a mitochondrial...

Extracted text: 13. Under some conditions, preparations of intact mitochondria will quantitatively convert fatty acids to acetoacetate. If palmitate labeled with 1"C in C-4 is added to such a mitochondrial preparation and the acetoacetate is isolated, where is 1"C-label found in the acetoacetate? С-1 only В. С-2 оnly С. С-3 only D. C-1 and C-3 A. E. C-2 and C-4 Why is the answer C-2 and C-4, and not only C-4?