endosymbiotic theory
Texto del Guión Gráfico
- KEEPING UP WITH THE CELLS
- Through sending our co-host Bill back in time about 3.5 billion years ago, we were able to find out that the first bit of life on the planet was formed as prokaryotes
- This week on KEEPING UP WITH THE CELLS... we will be observing how the famous ENDOSYMBIOTIC THEORY came to be.
- KEEPING UP WITH THE CELLS
- To my left, you will see one of the earliest prokaryotes in history! We can observe the double membrane exterior of the cell.
- mitochondria
- And look now! Two bacteria that look a little familiar also joined the party!
- KEEPING UP WITH THE CELLS
- Eukaryote
- Eventually the prokaryote was able to absorb these two other cells without digesting them in order to form a present day EUKARYOTIC CELL!
- KEEPING UP WITH THE CELLS
- BILL's observations of the endosymbiotic theory at its very beginning show that it is the theory that mitochondria and chloroplast at one point in time were their own individual prokaryotes, but eventually through their absorption into a regular prokaryote, they helped to form the present day eukaryotic cell!
- KEEPING UP WITH THE CELLS
- Prokaryote
- Thanks to Lynn Margulis the endosymbiotic cell theory stands to remain as one of the top two prominent theories in science today.
- chloroplast
- KEEPING UP WITH THE CELLS
- Thank you for joining us on KEEPING UP WITH THE CELLS this week as we explored the endosymbiotic cell theory and the origins of the eukaryotic cell! Tune in next week to learn the history of another theory!
- When taking a closer look at the present day eukaryote that was created over about a million years, we are a double membrane result from the occurrence of absorption along with organelles like the nucleus.
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