<prompt> Which of the following enzyme of Heme synthesis is located in mitochondria?ALA synthaseALA dehydrataseUroporphyrinogen I synthaseUroporphyrinogen decarboxylase  <response>: First reaction and the last 3 reactions of heme synthesis take place in the mitochondria. The rest of them takes place in cytosol. Figure: Heme synthesis occuring in mitochondrion cytosol 