What does the endosymbiotic theory say?

What does the endosymbiotic theory say?

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.

What is the Endosymbiotic hypothesis and what evidence is there to support it?

There is broad evidence to show that mitochondria and plastids arose from bacteria and one of the strongest arguments to support the endosymbiotic theory is that both mitochondria and plastids contain DNA that is different from that of the cell nucleus and that they have their own protein biosynthesis machinery.

What is an endosymbiont quizlet?

endosymbiont theory. The theory that mitochondria and plastids, including chloroplasts, originated as prokaryotic cells engulfed by host cells. The engulfed cell and its host cell then evolved into a single organism. You just studied 6 terms! 1/6.

Which of the following is the strongest evidence supporting the endosymbiont hypothesis?

The strongest piece of evidence for the endosymbiotic theory is the fact that mitochondria and chloroplasts have their own circular DNA, prokaryote fashion, and can still replicate, transcribe and translate some proteins. Their ribosomes are also fashioned as a prokaryotes would be.

How does the endosymbiont hypothesis explain the evolution of eukaryotes quizlet?

The endosymbiotic hypothesis concerns the origin of mitochondria and chloroplasts, two organelles contained within various eukaryotic cells. Such symbiotic relationships in which two species are dependent upon one another to varying extents served as crucial elements of the evolutionary progression of eukaryotic cells.

Which of the following best describes the endosymbiont theory?

Which of the following best describes an endosymbiont? A cell that lives within another cell. The theory of endosymbiosis best explains: How eukaryotic cells evolved from a prokaryotic cell engulfing another prokaryotic cell.

What is the theory of endosymbiosis How is it hypothesized to have happened?

The endosymbiotic theory is how scientists think mitochondria and chloroplasts evolved in eukaryotic organisms. Before mitochondria and chloroplasts were organelles in a cell, they were prokaryotes that were absorbed by eukaryotic cells.

How would you define endosymbiotic theory?

Endosymbiotic theory is the unified and widely accepted theory of how organelles arose in organisms , differing prokaryotic organisms from eukaryotic organisms. In endosymbiotic theory, consistent with general evolutionary theory, all organisms arose from a single common ancestor.

What is endosymbiotic theory?

endosymbiotic theory. noun. A theory stating that the eukaryotes evolved through a process whereby different types of free-living prokaryotes became incorporated inside larger prokaryotic cells and eventually developed into mitochondria, chloroplasts, and possibly other organelles.

What is endosymbiont theory?

Endosymbiotic Theory Definition. Endosymbiotic theory is the unified and widely accepted theory of how organelles arose in organisms, differing prokaryotic organisms from eukaryotic organisms.