What is the endosymbiont theory?
An early ancestor of eukaryotic cells engulfed an oxygen using NONphotosynthetic prokaryotic cell. Eventually the cell formed a relationship with the host cell, becoming an endosymbiont, then later merging into one organism
| Term | Definition |
|---|---|
What is the endosymbiont theory? | An early ancestor of eukaryotic cells engulfed an oxygen using NONphotosynthetic prokaryotic cell. Eventually the cell formed a relationship with the host cell, becoming an endosymbiont, then later merging into one organism |
What 2 items in a cell does this explain? | Mitochondria and Chloroplasts |
Both mitochondria and chloroplasts have? | 1. double membranes
2. contain CIRCULAR DNA and ribosomes
3. both autonomous from cell |
What types of DNA do mitochondria and chloroplasts have? | mtDNA and cpDNA, separate from nDNA |
Scientists are unsure if? | 1. unknown archaea engulfed a proteobacterium (mitochondria) and a cyanobacterium (chloroplast)
2. unknown bacteria and unknown archaea combined and engulfed the proteobacterium and cyanobacterium |