Chapter 26, Problem 2CQ

Summary Introduction

To determine: The importance of the phenomenon of endosymbiosis in the evolution of the first eukaryotic cells.

Introduction: Symbiosis is defined as an interaction between two different organisms living in close physical association, usually with benefits to one or both of the individuals involved. Endosymbiosis occurs when one organism lives inside the other. In endocytosis, the plasma membrane invaginates to form a vesicle for the uptake of substances into the cell.