<prompt> In which organelle s of hepatocyte, the elongation of long chain fatty acid takes placea Endoplasmic reticulum ERb Golgi bodyc Mitochondriad Lysosomese Ribosomeacbcadb  <response>: Endoplasmic reticulum E i.e., MitochondriaElongation takes place in microsomal system endoplasmic reticulum and mitochondrial system. 