A eukaryote is any cell or organism that possesses a clearly defined nucleus. Eukaryotic cells form the foundation of complex, multicellular life, including apple trees, mushrooms, fish and humans.

In addition to the nucleus, eukaryotic cells may contain several other types of organelles, which may include mitochondria, chloroplasts, the endoplasmic reticulum, the Golgi apparatus, and ...

image: A figure of the 80S ribosome structure. This image relates to an article that appeared in the Nov. 26, 2010, issue of Science, published by AAAS.The study, by Dr. Adam Ben-Shem at IGBMC ...

Intracellular endosymbionts that originally descended from free-living prokaryotes have been important in the evolution of eukaryotes by giving rise to two cytoplasmic organelles. Mitochondria ...

A figure of the 80S ribosome structure. This image relates to an article that appeared in the Nov. 26, 2010, issue of Science, published by AAAS. The study, by Dr. Adam Ben-Shem at IGBMC (Institut ...

Flagella are primarily used for cell movement and are found in prokaryotes as well as some eukaryotes. The prokaryotic flagellum spins, creating forward movement by a corkscrew shaped filament. A ...