(1) In one of the earliest steps in the evolution of eukaryotic cells, the mitochondrion was derived from an endosymbiosed bacterium.(2) Chloroplasts are cell organelles comparable to the mitochondria of animal cells.(3) A data set of 10 mitochondrial proteins from diverse eukaryotes was used for a test.(4) Transport of fatty acids from the cytoplasm to the inner mitochondrial space for oxidation.(5) They localized preferentially at mitochondrial sites and perinuclear regions.(6) The results suggest a shared thiamine transporter for mitochondria and the plasma membrane.(7) This precaution may extend to all mutants with defective mitochondrial morphology.(8) Destructive and degradative rearrangement of mitochondrial ultrastructure under anaerobic stress.(9) Inside the cytoplasm are mitochondria and endoplasmic reticulum.(10) The singlet oxygen damages cell membranes, mitochondria and cell nuclei.(11) Developing leaf tissue provides an alternative model system in which to study mitochondrial biogenesis.