Endosymbiotic Theory
Storyboard Text
- Loading,,, Lets turn back time to see where these two cells came from
- These two objects are plant and animal cells. One gets energy from sugar(cellular respiration), and the other gets energy from the sun using photosynthesis. Animal cells have mitochondria and Plant cells have chloroplasts as well.
- is that my cell?
- Eukaryotic cells have a double membrane-bound nucleus!
- This is called a host cell, the ancestor of both plant and animal cells(eukaryotic). It had a nucleus, nuclear envelope, and an Endoplasmic reticullum.
- The host cell found another cell that could make its own energy! This was a prokaryote that used cellular respiration. It engulfed it and found it a home!
- Prokaryote cells have a nucleus region, no membrane bound nucleus!
- Homeless oxygen using non-photosynthetic prokaryote.HAS DNA!
- The host cell is now a non-photosynthetic eukaryote! The absorbed cell became the mitochondria that is in our cells today!
- stop for evidence!
- The mitochondria has a double membrane, showing that it was once another cell
- The Host cell now finds another prokaryote to take in! This one is photosynthetic, meaning it takes energy from the sun!
- Homeless photosynthetic prokaryote!
- Mitochondria and chloroplasts are independent cells within the cell!
- After absorbing that prokaryote, this cell now has chloroplasts! An organelle that can do photosynthesis! This is how our plant cells get energy.
- Chloroplasts and Mitochondria have their own DNA! Clearly, they used to be a cell on their own.
- Stop for evidence!
Over 30 Million Storyboards Created