Answer
Primary endosymbiogenesis occurs when an Eukaryotic cell engulfs a prokaryotic cell. When this happens, the prokaryotic cell becomes an organelle in the eukaryotic cell.
In secondary endosymbiogenesis, the product of endosymbiogenesis is engulfed by a eukaryotic cell. This allows a plastid to be engulfed by a eukaryotic cell.
Work Step by Step
Primary endosymbiogenesis occurs when an Eukaryotic cell engulfs a prokaryotic cell. When this happens, the prokaryotic cell becomes an organelle in the eukaryotic cell.
In secondary endosymbiogenesis, the product of endosymbiogenesis is engulfed by a eukaryotic cell. This allows a plastid to be engulfed by a eukaryotic cell.