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a mitochondrion (plural mitochondria) (from Greek μιτος or mitos, thread + κουδριον or khondrion, granule) is an organelle, variants of which are found in most eukaryotic cells.[1] Mitochondria are sometimes described as "cellular power plants," because they convert organic materials into energy in the form of ATP via the process of oxidative phosphorylation. Usually a cell has hundreds or thousands of mitochondria, which can occupy up to 25% of the cell's cytoplasm. Mitochondria have their own DNA and may, according to the endosymbiotic theory, be descended from free-living prokaryotes that were closely related to rickettsia bacteria
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∙ 11y ago
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∙ 10y agoThe mitochondria is though to be from a bacteria that "found a home" within the larger cell. Both had an advantage from this arrangement. Since the bacteria had it's own DNA, it kept it. This is the mitochondrial DNA that comes from your mother. Mitochondria divide when they want and replicate their DNA as well.
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∙ 10y agoThey were bacteria early.Symbiotic living turned them to mitochondria.
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∙ 12y agoIt is thought that the mitochondrion evolved from symbiotic bacteria that took up residence inside the first eukaryotic cells. u r wrong buddy, lets fight
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∙ 12y agoThe mitochondria evolved from symbiotic bacteria that took up residence inside the first eukaryotic cells.
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∙ 11y agoIt is believed that mitochondrion evolved from symbiotic bacteria that took residence in the first eukaryotic cells
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∙ 10y agoAccording to endosymbiotic theory, early mitochondrion was an aerobic bacterium.It lived symbiotically in eukaryotes.With time,it has turned into an organell.
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∙ 10y agoThey were bacteria early.Symbiotic living turned them to mitochondria.
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∙ 10y agoMitochondria were pre bacteria.They lived symbiotcally are turned into Mitochondria.
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What does the theory of endosymbiosis explain?
concerns the origins of mitochondria and plastids (e.g. chloroplasts), which are organelles of eukaryotic cells. According to this theory, these organelles originated as separate prokaryotic organisms which were taken inside the cell as endosymbionts. Mitochondria developed from proteobacteria (in particular, Rickettsiales or close relatives) and chloroplasts from cyanobacteria. concerns the origins of mitochondria and plastids (e.g. chloroplasts), which are organelles of eukaryotic cells. According to this theory, these organelles originated as separate prokaryotic organisms which were taken inside the cell as endosymbionts. Mitochondria developed from proteobacteria (in particular, Rickettsiales or close relatives) and chloroplasts from cyanobacteria. concerns the origins of mitochondria and plastids (e.g. chloroplasts), which are organelles of eukaryotic cells. According to this theory, these organelles originated as separate prokaryotic organisms which were taken inside the cell as endosymbionts. Mitochondria developed from proteobacteria (in particular, Rickettsiales or close relatives) and chloroplasts from cyanobacteria.
What two organelles are derived from symbiotic bacteria?
Chloroplasts and mitochondria. It is believed they were engulfed by the cells because of the dual membrane present on both. Both are believed to have originated from an endosymbiotic bacteria. Mitochondria's inner matrices contain DNA, and they have many features similar to those of bacteria. Chloroplasts are believed to have come from an endosymbiotic cyanobacteria.
Which organelles are believed to have originated from free-standing bacteria ingested by ancient eukaryotic cells?
The endosymbiotic theory suggests that the mitochondria and chloroplast might have once been individual bacteria that were phagocotized by the host cell. This theory is backed up by the fact that mitochondria have different DNA from the host cell.
Which cellular organelle uses oxygen and glucose to provide energy?
The mitochondria.
How would you describe the characteristics of Discicristates?
Disc -like cristae in the mitochondria of the cell, typical example might be Euglenoids
Where Might have Mitochondria originated from?
From early prokaryotes that lived symbiotically with eukaryotic cells Margules endosymbiont theory
How do scientists think mitochondria originated?
Mitochondria are evolved from bacteria.Symbiotic living aerobic bacteria turned into mitochondria.
Where have mitochondria originated from?
They have evolved from bacteria. Aerobic bacteria have turned into them
What pair of organelles are thought to have originated from prokaryotes that were taken in but not digested?
Mitochondria and chloroplasts.
What is common with chloroplast and mitochondria?
They are originated from bacteria.They have ribosomes,DNA,enzymes etc
Is mitochondria and chloroplasts endosymbiotic?
Mitochondria and chloroplasts are thought to have originated as prokaryotic endosymbionts: True
What is another cell organelle that is thought to have originated through endosymbiosis?
Take the mitochondria as example. This organelle contains it's own circular DNA that is representative of cyanobacterial DNA. This DNA codes for some proteins also. Some mitochondrial DNA has been taken into the nuclear DNA where it's presence is rather obvious. And the mitochondria fission in reproducing themselves.
How are mitochondria and chloroplasts manufactured in the cell?
Both of them are thought to have originated from primitive bacteria. This theory is called Endosymbiont theory.
An active cell might contain large numbers of these?
mitochondria
Where might have mitochondria orginated from?
They were evolved from bacteria.Endosymbiotic theory describes it.
What does the endosymbiotic theory purpose?
concerns the origins of mitochondria and plastids (e.g. chloroplasts), which are organelles of eukaryotic cells. According to this theory, these organelles originated as separate prokaryotic organisms which were taken inside the cell as endosymbionts. Mitochondria developed from proteobacteria (in particular, Rickettsiales or close relatives) and chloroplasts from cyanobacteria. concerns the origins of mitochondria and plastids (e.g. chloroplasts), which are organelles of eukaryotic cells. According to this theory, these organelles originated as separate prokaryotic organisms which were taken inside the cell as endosymbionts. Mitochondria developed from proteobacteria (in particular, Rickettsiales or close relatives) and chloroplasts from cyanobacteria. concerns the origins of mitochondria and plastids (e.g. chloroplasts), which are organelles of eukaryotic cells. According to this theory, these organelles originated as separate prokaryotic organisms which were taken inside the cell as endosymbionts. Mitochondria developed from proteobacteria (in particular, Rickettsiales or close relatives) and chloroplasts from cyanobacteria.
What does the theory of endosymbiosis explain?
concerns the origins of mitochondria and plastids (e.g. chloroplasts), which are organelles of eukaryotic cells. According to this theory, these organelles originated as separate prokaryotic organisms which were taken inside the cell as endosymbionts. Mitochondria developed from proteobacteria (in particular, Rickettsiales or close relatives) and chloroplasts from cyanobacteria. concerns the origins of mitochondria and plastids (e.g. chloroplasts), which are organelles of eukaryotic cells. According to this theory, these organelles originated as separate prokaryotic organisms which were taken inside the cell as endosymbionts. Mitochondria developed from proteobacteria (in particular, Rickettsiales or close relatives) and chloroplasts from cyanobacteria. concerns the origins of mitochondria and plastids (e.g. chloroplasts), which are organelles of eukaryotic cells. According to this theory, these organelles originated as separate prokaryotic organisms which were taken inside the cell as endosymbionts. Mitochondria developed from proteobacteria (in particular, Rickettsiales or close relatives) and chloroplasts from cyanobacteria.
