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': 'Saturated fatty acids containing up to 16 carbon atoms are assembled in \nSelect and explain. \nA. Mitochondria, B. Rough endoplasmic reticulum, C. Smooth endoplasmic reticulum, D. Cytoplasm', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Cytoplasm\n\nThe end product of cytosolic fatty acid synthesis cycles is saturated 16-carbon palmitic acid.\nElongation of pre-existing fatty acid :-\n(i) Microsomnal (endoplasmic reticulum) :- Elongation of palmitic acid (16-C) into longer chain fatty acids\n(ii)\xa0Mitochondrial :- Elongation of short and medium chain fatty acids containing fewer than 16 carbon atoms', 'role': 'assistant'}]