Cell Structure and Cell Organelles
Schematic for Eukaryotic Cells
Many single-celled and all multicellular organisms are made of eukaryotic cells. Their most important feature, for which they are named, is their nucleus (eukaryon). While some cell components and organelles are part of the basic structure of all eukaryotes, others only occur in certain organisms or tissue types.
|All eukaryotic cells||nucleus, mitochondria, endoplasmic reticulum (ER), Golgi apparatus, ribosomes, lysosomes|
|Only in animal cells||centromeres|
|Only in plant cells||chloroplasts, cell wall, vacuoles|
The following pages contain a more detailed description of the components and organelles of animal cells. The most important organelles of plant cells, chloroplasts, are discussed in detail in the German learning unit entitled Chloroplasten - die Photosynthese-Fabriken der Zellen.