Endosymbiont theory Notes: Definitions & Explanations PDF | Download eBooks
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Endosymbiont theory Definition:
Endosymbiont theory states that an early ancestor of eukaryotic cells engulfed an oxygen-using nonphotosynthetic prokaryotic cell.
Campbell Biology by J.B. Reece, L.A. Urry, M.L. Cain, S.A. Wasserman, P.V. Minorsky, R.B. Jackson
Endosymbiont theory Notes:
This theory basically describes how a large host cell and ingested bacteria could easily become dependent on one another and form a symbiotic relationship. They depend on each other for survival. It is believed that mitochondria and chloroplasts also became part of the eukaryotic cells by this manner.
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