The answer is: most of them. Many members of the Kingdoms Bacteria and Archaea are heterotrophs, but as prokaryotes, they do not have mitochondria. read more
what do heterotrophs use mitochondria for - 7045498. Hey there! Heterotrophs use mitochondria for sugars, fat, proteins, and even energy! read more
They produce energy. In multicellular organisms the mitochondria play an important rolein apoptosis (death). They break down sugars to make energy. By analogy they would be the furnace compartment (where the fireburns) of a steam train. Added: The mitochondria are the source of the cell's ATP; the energycurrency of the cell. read more