This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Biochemistry
[{'content': 'The only part of an odd chain fatty acid that is glucogenic: \nSelect and explain. \nA. Propionyl CoA, B. Acetyl CoA, C. Malonyl CoA, D. Acyl CoA', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Fatty acids with an odd number of carbon atoms are oxidized by\xa0 the\xa0 pathway\xa0 of\xa0 β-oxidation\xa0 described\xa0above\xa0producing\xa0acetyl\xa0CoA\xa0until\xa0a\xa0three-carbon\xa0(propionyl-CoA)\xa0residue remains. This compound is converted to succinyl-CoA, a constituent of the citric acid cycle. Hence, the propionyl residue from an odd-chain fatty acid is the only part of a fatty acid that is glucogenic.\nHARPERS ILLUSTRATED BIOCHEMISTRY30th ed page no.225', 'role': 'assistant'}]