Eukaryote Structure


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•  Drawing of the ultrastructure of eukaryotic cells based on electron micrographs

Animal Cell  (click to label)


Key Features:

  • Nucleus – shown as double membrane structure with pores
  • Mitochondria – double membrane with inner one folded into cristae ; no larger than half the nucleus in size
  • Golgi apparatus – shown as a series of enclosed sacs (cisternae) with vesicles leading to and from
  • Endoplasmic reticulum – interconnected membranes shown as bare (smooth ER) and studded (rough ER)
  • Ribosomes – labelled as 80S
  • Cytosol – internal fluid labelled as cytosol (‘cytoplasm' is all internal contents minus the nucleus)

Plant Cell  (click to label)

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Key Features:

  • Vacuole – large and occupying majority of central space (surrounded by tonoplast)
  • Chloroplasts – double membrane with internal stacks of membrane discs (only present in photosynthetic tissue)
  • Cell wall – labelled as being composed of cellulose ; thicker than cell membrane
  • Shape – brick-like shape with rounded corners