Abstract
This case presents a fanciful story about the origin of the eukaryotic cell, a major milestone in the evolution of life. The characters of the story are Mito, Chlora, Flag, ER, Nuc, Golgi, Ves, and Ly, all members of an extended cellular family. Written for college and high school introductory biology classes, students learn about cellular structure and functions in addition to the two major theories for the rise of the eukaryotic cell.