View Pit Stop page for race #3862 by russellriago — Ghost race
View profile for Rahul (russellriago)
| Official speed | 72.27 wpm (112.25 seconds elapsed during race) |
|---|---|
| Race Start | February 28, 2020 5:24:17pm UTC |
| Race Finish | February 28, 2020 5:26:09pm UTC |
| Outcome | No win (2 of 5) |
| Accuracy | 97.0% |
| Points | 120.45 |
| 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. |