How to Use endosymbiosis in a Sentence
endosymbiosis
noun-
An aid to survival The influence of endosymbiosis extends beyond its role in shaping the evolution of the eukaryotic cell.
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Encyclopedia Britannica,
18 June 2026
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This primordial gulp, creating a condition known as endosymbiosis (also thought to be the origin story of mitochondria), is believed to have happened just once.
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Quanta Magazine,
4 May 2026
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Types and examples Depending on the nature of the participants, endosymbiosis is classified as primary or secondary.
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Encyclopedia Britannica,
18 June 2026
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An evolutionary tool Scientists suspect that endosymbiosis played a fundamental role in the evolution of the eukaryotic cell.
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Encyclopedia Britannica,
18 June 2026
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At the other end of the spectrum from mutually beneficial endosymbiosis is parasitic endosymbiosis.
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Encyclopedia Britannica,
18 June 2026
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In facultative endosymbiosis, the symbiont can live independently, as in the case of nitrogen-fixing Rhizobium bacteria in the root nodules of leguminous plants.
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Encyclopedia Britannica,
18 June 2026
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Biologists use the term serial endosymbiosis to describe the sequential endosymbiotic events that gave rise to eukaryotic organelles such as mitochondria and chloroplasts.
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Encyclopedia Britannica,
18 June 2026
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Secondary endosymbiosis, on the other hand, refers to the internalization of a unicellular organism that already possesses organelles formed through primary endosymbiosis.
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Encyclopedia Britannica,
18 June 2026
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Primary endosymbiosis gave rise to mitochondria and chloroplasts and involved primitive unicellular prokaryotes (or proto-eukaryotes) and archaea.
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Encyclopedia Britannica,
18 June 2026
Some of these examples are programmatically compiled from various online sources to illustrate current usage of the word 'endosymbiosis.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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