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One evidence is that both mitochondria and chloroplasts have their own circular piece of DNA that actually codes for a few proteins. This DNA is of the prokaryote type and strongly suggests that the mitochondria and chloroplast were once free living organisms that, one way or another, joined in a symbiotic relationship with a proto eukaryote cell.
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∙ 12y ago
Evidence for endosymbiotic theory includes the presence of organelles like mitochondria and chloroplasts that have their own DNA and ribosomes, similar to prokaryotic cells. Additionally, these organelles reproduce independently within cells, similar to bacteria. Genetic sequencing has shown that the DNA of mitochondria and chloroplasts is more closely related to bacterial DNA than to the DNA of the eukaryotic host cell.
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Why is the endosymbiotic theory not proved yet?
The endosymbiotic theory is widely accepted as a strong scientific hypothesis; however, definitive proof is challenging due to the lack of direct observational evidence from billions of years ago when the theorized events occurred. While there is substantial supporting evidence, such as the similarities between organelles like mitochondria and chloroplasts with free-living bacteria, the theory cannot be definitively proven beyond any doubt.
Which two organelles are used as evidence supporting enosymbiotic theory?
The mitochondria and chloroplasts are used as evidence supporting the endosymbiotic theory. Both organelles have their own circular DNA, replicate independently of the cell, and have a double membrane structure similar to certain prokaryotes.
What statement fails to support the endosymbiotic theory?
A statement that fails to support the endosymbiotic theory would be one that asserts that all eukaryotic organelles were independently formed within the cells, without any symbiotic relationship with prokaryotic cells. This contradicts the evidence and principles of the endosymbiotic theory, which suggests that organelles like mitochondria and chloroplasts originated from ancient symbiotic relationships between prokaryotic cells and ancestral eukaryotic cells.
Which discovery supported the endosymbiotic theory?
The discovery of mitochondria and chloroplasts having their own DNA, ribosomes, and double membrane structure supports the endosymbiotic theory, which proposes that these organelles were once free-living prokaryotes that were engulfed by ancestral eukaryotic cells. This evidence suggests that they evolved from symbiotic relationships between different cell types.
What theory was developed around the idea that some eukaryotic organelles evolved from proyarotic organisms?
The endosymbiotic theory proposes that eukaryotic organelles, such as mitochondria and chloroplasts, originated from engulfed prokaryotic cells that developed a symbiotic relationship within the host cell. This theory suggests that these organelles were once free-living bacteria that were engulfed by early eukaryotic cells and eventually evolved into essential components of eukaryotic cells.
The endosymbiotic theory was supported by the scientist?
Lynn Margulis was the scientist who proposed and championed the endosymbiotic theory. She provided evidence to support the idea that eukaryotic cells evolved from symbiotic relationships between different prokaryotic organisms.
American biologist who provided evidence for the endosymbiotic theory which explains the origin of chloroplasts and mitochondra?
Lynn Margulis is the American biologist known for her work on the endosymbiotic theory. She proposed that chloroplasts and mitochondria evolved from ancient prokaryotic cells that were engulfed by a host cell. Her research provided evidence supporting the idea that these organelles have their own DNA and replicate independently within eukaryotic cells.
Why is the endosymbiotic theory not proved yet?
The endosymbiotic theory is widely accepted as a strong scientific hypothesis; however, definitive proof is challenging due to the lack of direct observational evidence from billions of years ago when the theorized events occurred. While there is substantial supporting evidence, such as the similarities between organelles like mitochondria and chloroplasts with free-living bacteria, the theory cannot be definitively proven beyond any doubt.
Which two organelles are used as evidence supporting enosymbiotic theory?
The mitochondria and chloroplasts are used as evidence supporting the endosymbiotic theory. Both organelles have their own circular DNA, replicate independently of the cell, and have a double membrane structure similar to certain prokaryotes.
What statement fails to support the endosymbiotic theory?
A statement that fails to support the endosymbiotic theory would be one that asserts that all eukaryotic organelles were independently formed within the cells, without any symbiotic relationship with prokaryotic cells. This contradicts the evidence and principles of the endosymbiotic theory, which suggests that organelles like mitochondria and chloroplasts originated from ancient symbiotic relationships between prokaryotic cells and ancestral eukaryotic cells.
Which discovery supported the endosymbiotic theory?
The discovery of mitochondria and chloroplasts having their own DNA, ribosomes, and double membrane structure supports the endosymbiotic theory, which proposes that these organelles were once free-living prokaryotes that were engulfed by ancestral eukaryotic cells. This evidence suggests that they evolved from symbiotic relationships between different cell types.
What is the theory that says prokaryotic parasites once lived in eukaryotic cells?
This is the endosymbiotic theory.
The endosymbiotic theory has been developed to explain the emergence of?
The endosymbiotic theory has been developed to explain the emergence of eukaryotic cells, proposing that certain organelles within eukaryotic cells were once free-living prokaryotic organisms that were engulfed by a larger host cell and formed a symbiotic relationship. This theory is supported by evidence such as the mitochondria and chloroplasts having their own DNA and ribosomes, similar to bacteria.
What is the endosymbiotic theory?
The Endosymbiotic Theory is a theory about how mitochondria and chloroplasts formed. The theory suggests that both the mitochondria and chloroplasts were once prokaryotic cells that were ingested but not digested by eukaryotic cells. This would explain why both have their own DNA.
What theory proposes that eukaryotic cells arose from living communities of several prokaryotic organisms?
The endosymbiotic theory proposes that eukaryotic cells originated from the symbiotic relationship between different prokaryotic organisms, specifically between a host cell and its internalized bacteria-like partners, which eventually evolved into organelles like mitochondria and chloroplasts. This theory is supported by evidence such as the similarities between organelles and prokaryotes in terms of structure, genome organization, and replication.
Theory of endosymbiosis?
The endosymbiotic theory explains the origin of chloropasts and mitochondia. Symbiosis is the mutual benefit of two organisms living together. This was the basis of the theory.
When was the endosymbiotic theory proposed?
The endosymbiotic theory was proposed in the 1960s by Lynn Margulis to explain the origin of eukaryotic cells. It suggests that eukaryotic cells evolved through a mutually beneficial relationship between primitive prokaryotic cells.
