Austin (austin_biceps)

Race #5568

View Pit Stop page for race #5568 by austin_bicepsGhost race

View profile for Austin (austin_biceps)

Official speed 90.57 wpm (89.57 seconds elapsed during race)
Race Start July 9, 2018 5:21:46am UTC
Race Finish July 9, 2018 5:23:16am UTC
Outcome No win (3 of 3)
Accuracy 98.0%
Points 150.94
Text #3550368 (Length: 676 characters)

Mitochondria and chloroplasts display similarities with bacteria that led to the endosymbiont theory. This theory states that an early ancestor of eukaryotic cells engulfed an oxygen-using non-photosynthetic prokaryotic cell. Eventually, the engulfed cell formed a relationship with the host cell in which it was enclosed, becoming an endosymbiont, a cell living within another cell. Indeed, over the course of evolution, the host cell and its endosymbiont merged into a single organism, a eukaryotic cell with a mitochondrion. At least one of these cells may have then taken up a photosynthetic prokaryote, becoming the ancestor of eukaryotic cells that contain chloroplasts.