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What is the Endosymbiotic cell theory?
The endosymbiotic theory states that some of the organelles in eukaryotic cells were once prokaryotic microbes. Mitochondria and chloroplasts are the same size as prokaryotic cells and divide by binary fission. Mitochondria and chloroplasts have their own DNA which is circular, not linear.
What is the endosymbiotic theory Bioninja?
Endosymbiotic theory proposes that eukaryotic organelles arose from independent prokaryotes being ingested by larger prokaryotes via endocytosis. Instead of being digested, the smaller prokaryote formed a symbiotic relationship with the host, over generations becoming an organelle.
What is the endosymbiotic theory that explains the evolution of the eukaryotic cell?
The endosymbiotic theory explains how eukaryotic cells evolved. The large and small cells formed a symbiotic relationship in which both cells benefited. Some of the small cells were able to break down the large cell’s wastes for energy. They supplied energy not only to themselves but also to the large cell.
Who created the endosymbiotic theory?
Lynn Margulis
Lynn Margulis, (born March 5, 1938, Chicago, Illinois, U.S.—died November 22, 2011, Amherst, Massachusetts), American biologist whose serial endosymbiotic theory of eukaryotic cell development revolutionized the modern concept of how life arose on Earth.
How cells can only be formed by a division of pre existing cells?
Cells can only be formed by division of pre-existing cells. The first cells must have arisen from non-living material. The origin of eukaryotic cells can be explained by the endosymbiotic theory.
What theory is used to describe the origin of some eukaryotic organelles?
Abstract. The endosymbiotic theory posits that some eukaryotic cell organelles, such as mitochondria and plastids, evolved from free-living prokaryotes. Available data indicate that the mitochondrial endosymbiosis initiated the evolution of the eukaryotic cell, as suggested by Margulis.