mitochondrea play a large role in energy processes within a body
metabolism_in_organism is not metabolism. mitochondrion is not internal_body_part. mitochondria is energy_producing_components_of_cells. mitochondrion is organelle. metabolism_in_organism is metabolism. mitochondrion is internal_body_part. mitochondrion is not organelle. mitochondria is not energy_producing_components_of_cells.