Autorin: Dr. Tanja Brüning; Zellkern: Science Photo Library/Fawcett, Don; Mitochondrium: mauritius images/Science Source; Dictyosom: Science Photo Library/BIOPHOTO ASSOCIATES; Ribosom: Science Photo Library/BIOPHOTO ASSOCIATES; Chloroplast: mauritius images/Science Source/All mauritius images; Endoplasmatisches Reticulum: Science Photo Library/MEDIMAGE; Cytoskelett: Science Photo Library; Vakuole: mauritius images/Science Source