Thursday, September 16, 2021
Mitochondrial Health

Endosymbiosis theory | Cell structure and function | AP Biology | Khan Academy



The theory of how mitochondria, chloroplasts and other membrane-bound organelles in eukaryotic cell likely arose from a symbiosis between aerobic prokaryotes and host anaerobic eukaryotic ancestors. Developed by Lynn Margulis.

View more lessons or practice this subject at https://www.khanacademy.org/science/ap-biology/cell-structure-and-function/cell-compartmentalization-and-its-origins/v/endosymbiosis-theory

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28 thoughts on “Endosymbiosis theory | Cell structure and function | AP Biology | Khan Academy
  1. i love your stuff sal
    by the way i saw that there were some incomplete topics in calculus 2 (ex: trig sub) where you don't list out all the different scenarios you can come across. so can you please solve that. i know that i said it once but i will say it again i really love what you do here man so please keep this up.

  2. “This is a fascinating theory…. and it’s actually ‘has been proven’ out…. ‘its been validated’ as we’ve looked at the dna structures of mitochondria and chloroplast. ‘That this is the most likely theory’ of how they emerged in our cells.” 🤦‍♂️

    To be clear to the readers, despite the attempt to mislead you, this has been proven out and validated to be the most “likely” way that they imagine it to happen without out any scientific evidence, but only imagination and faith.

    Also, it is quite possible that it to degrade its DNA, “kicking it out,” but where does the original DNA come?

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