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The endosymbiotic hypothesis postulates that an early eukaryotic cells lacking mitochondria and chloroplasts phagocytosed early aerobic prokaryotes and photosynthetic prokaryotes and rather than digesting them, formed a symbiotic relationship with them, offering them nutrients and shelter (therefore the 'endo-' part) and getting very efficient energy generating systems in return. This hypothesis was proposed after mitochondria and chloroplasts were found to share many structure and mechanistic similarities with aerobic and photosynthetic prokaryotes, and that mitochondria and chloroplasts contained their own genetic material and capable of producing some proteins. The hypothesis is the norm now as to the evolution of mitochondria and chloroplasts however many questions remain to be solved such as whether the evolution of eukaryotism occurred before or after the assimilation of other cells through endosymbiosis.
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What did chloroplast evolve from according to the endosymbiotic hypothesis?
They arose from a symbiotic union of two organisms.
What is the evolutionary hypothesis that some organelles are remnants of prokaryotic cells?
The endosymbiotic theory proposes that some organelles, such as mitochondria and chloroplasts, were once free-living prokaryotic cells that were engulfed by a host cell through endocytosis. Over time, these prokaryotic cells formed a symbiotic relationship with the host cell, eventually evolving into permanent organelles within the eukaryotic cell.
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.
What is biologists Lynn margulis's hypothesis about where the first protists came from?
Lynn Margulis proposed the endosymbiotic theory, suggesting that organelles such as mitochondria and chloroplasts in eukaryotic cells evolved from symbiotic relationships between different types of prokaryotic cells. This hypothesis explains the origins of protists and other eukaryotic organisms through the merging of different cell types rather than gradual evolution from a single organism.
Is mitochondria and chloroplasts endosymbiotic?
Yes, both mitochondria and chloroplasts are considered to be endosymbiotic organelles because they are believed to have evolved from free-living bacteria that were engulfed by ancestral eukaryotic cells. This symbiotic relationship enabled the host cell to obtain energy more efficiently through aerobic respiration (mitochondria) and photosynthesis (chloroplasts).
What did chloroplast evolve from according to the endosymbiotic hypothesis?
They arose from a symbiotic union of two organisms.
What did chloroplasts eveolve from according to the endosymbiotic hypothesis?
They are thought to be evolved from photosynthetic bacteria. They have circular DNA and 70s ribosomes as bacteria
What is the evidence for endosymbiotic hypothesis?
The endosymbiotic hypothesis postulates that an early eukaryotic cells lacking mitochondria and chloroplasts phagocytosed early aerobic prokaryotes and photosynthetic prokaryotes and rather than
What is the evolutionary hypothesis that some organelles are remnants of prokaryotic cells?
The endosymbiotic theory proposes that some organelles, such as mitochondria and chloroplasts, were once free-living prokaryotic cells that were engulfed by a host cell through endocytosis. Over time, these prokaryotic cells formed a symbiotic relationship with the host cell, eventually evolving into permanent organelles within the eukaryotic cell.
Which two hypothesis were merged into what is know as the?
The two hypotheses that were merged to form the endosymbiotic theory are the autogenous hypothesis, which suggests that organelles evolved from prokaryotic cells that became internal structures in a eukaryotic cell, and the symbiotic hypothesis, which proposes that organelles originated from the mutualistic relationship between different types of cells. These two ideas were combined to explain the presence of organelles like mitochondria and chloroplasts in 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.
What is the origin of mitochondria and chloroplast?
They are origined from bacteria.They were evolved through endosymbiotic living.
A possible explanation or answer to a question is a?
A hypothesis
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.
What is the theory that says prokaryotic parasites once lived in eukaryotic cells?
This is the endosymbiotic theory.
What is biologists Lynn margulis's hypothesis about where the first protists came from?
Lynn Margulis proposed the endosymbiotic theory, suggesting that organelles such as mitochondria and chloroplasts in eukaryotic cells evolved from symbiotic relationships between different types of prokaryotic cells. This hypothesis explains the origins of protists and other eukaryotic organisms through the merging of different cell types rather than gradual evolution from a single organism.
What organisms created the modern mitochondria?
Aerobic bacteria evolved into mitochondria.It is explained in endosymbiotic theory.
