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How do mitochondria and chloroplasts become part of modern eukaryotic cells?
Wiki User
∙ 10y ago
Because of the 69 inside of the cell lol
Wiki User
∙ 10y ago
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Where do scientists believe mitochondria and chloroplasts originated?
Scientists believe that mitochondria and chloroplasts originated from ancient prokaryotic cells through a process called endosymbiosis. This theory proposes that mitochondria were once free-living bacteria that were engulfed by a primitive eukaryotic cell, forming a symbiotic relationship. Similarly, chloroplasts are thought to have originated from ancient photosynthetic bacteria that were also engulfed by a eukaryotic cell.
Are both chloroplasts and mitochondria bounded by two membranes?
Yes. The outer membrane is similar to modern eukaryotic membranes, such as the plasma membranes of animals and plants. The inner membrane is similar to modern prokaryotic membranes, found in bacteria. This difference has been taken as one piece of evidence to support the theory of the endosymbiotic origin of these two organelles, i.e. the idea that each of these organelles formed originally from the engulfing of a prokaryotic cell by a eukaryotic one.
Is it true mitochondria and chloroplasts originated in bacteria?
Yes, it is believed that mitochondria and chloroplasts originated from bacteria through a process called endosymbiosis. This theory proposes that ancient eukaryotic cells engulfed free-living bacteria, which eventually formed a symbiotic relationship, leading to the development of these organelles within the cell.
The endosymbiotic theory includes all of the following except?
The endosymbiotic theory includes the idea that mitochondria and chloroplasts were once free-living prokaryotic cells that were engulfed by larger cells and developed a symbiotic relationship, leading to modern eukaryotic cells. It does not include the concept of gene flow between mitochondrial and nuclear genomes.
Did mitochondria evolved from engulfed prokaryotes?
Yes, mitochondria are believed to have evolved from engulfed aerobic bacteria that formed a symbiotic relationship with early eukaryotic cells. This theory is known as the endosymbiotic theory and is supported by similarities between mitochondria and modern-day bacteria, such as their own DNA and ability to replicate independently.
Where do scientists believe mitochondria and chloroplasts originated?
Scientists believe that mitochondria and chloroplasts originated from ancient prokaryotic cells through a process called endosymbiosis. This theory proposes that mitochondria were once free-living bacteria that were engulfed by a primitive eukaryotic cell, forming a symbiotic relationship. Similarly, chloroplasts are thought to have originated from ancient photosynthetic bacteria that were also engulfed by a eukaryotic cell.
What theory states that mitochondria and chloroplasts are derived from free-living prokaryotic cells?
The endosymbiotic theory proposes that mitochondria and chloroplasts were once free-living prokaryotic cells that were engulfed by a primitive eukaryotic cell through symbiosis. Over time, these engulfed cells evolved into organelles within the host cell, leading to the development of modern eukaryotic cells.
Which is used as evidence for the idea that multicellular organisms evolved from prokaryotes?
Mitochondria and chloroplasts have their own DNA
Are both chloroplasts and mitochondria bounded by two membranes?
Yes. The outer membrane is similar to modern eukaryotic membranes, such as the plasma membranes of animals and plants. The inner membrane is similar to modern prokaryotic membranes, found in bacteria. This difference has been taken as one piece of evidence to support the theory of the endosymbiotic origin of these two organelles, i.e. the idea that each of these organelles formed originally from the engulfing of a prokaryotic cell by a eukaryotic one.
Is it true mitochondria and chloroplasts originated in bacteria?
Yes, it is believed that mitochondria and chloroplasts originated from bacteria through a process called endosymbiosis. This theory proposes that ancient eukaryotic cells engulfed free-living bacteria, which eventually formed a symbiotic relationship, leading to the development of these organelles within the cell.
Which eukaryotic kingdom includes members that are the result of endosymbioses that included an ancient proteobacterium and an ancient cyanobacterium?
The eukaryotic kingdom that includes members resulting from endosymbiosis with an ancient proteobacterium and an ancient cyanobacterium is Plantae. This process led to the formation of chloroplasts in plant cells, providing them with the ability to perform photosynthesis.
The endosymbiotic theory includes all of the following except?
The endosymbiotic theory includes the idea that mitochondria and chloroplasts were once free-living prokaryotic cells that were engulfed by larger cells and developed a symbiotic relationship, leading to modern eukaryotic cells. It does not include the concept of gene flow between mitochondrial and nuclear genomes.
Which do chloroplasts and mitochondria have that other organelles lack?
There is a theory that chloroplast and mitochondria were independent organisms. Since they were, they would have their own DNA. And it is true that they do. It is interesting that you get your mitochondria from only your mother. There are many studies have used mtDNA to trace the evolution and migration of human species, including when the common ancestor to modern humans and Neanderthals lived.
Does an animal mitochondrion contain functional ribosomes?
Yes, chloroplasts, like mitochondria, contain ribosomes.Chloroplasts also contain DNA, and synthesize messenger RNA by transcription. Polypeptides are formed at the ribosomes.These ribosomes are more or less like those of modern prokaryotic cells; this is one of the facts that supports the theory that chloroplasts and mitochondria evolved from ancestral free-living prokaryotic organisms.
Did mitochondria evolved from engulfed prokaryotes?
Yes, mitochondria are believed to have evolved from engulfed aerobic bacteria that formed a symbiotic relationship with early eukaryotic cells. This theory is known as the endosymbiotic theory and is supported by similarities between mitochondria and modern-day bacteria, such as their own DNA and ability to replicate independently.
What is the likely origin of mitochondria?
Mitochondria likely originated from a symbiotic relationship between a primitive eukaryotic cell and an aerobic prokaryotic cell, possibly an ancestor of modern-day alphaproteobacteria. This symbiosis likely occurred through endosymbiosis, where the prokaryotic cell was engulfed by the eukaryotic cell but not digested, leading to a mutually beneficial relationship where the host cell provided a protected environment and the prokaryotic cell provided ATP through aerobic respiration.
When did mitochondria first live?
Mitochondria are believed to have first evolved around 1.5 to 2 billion years ago from a symbiotic relationship between ancient prokaryotic organisms and the ancestors of modern eukaryotic cells. This event is known as endosymbiosis and played a crucial role in the evolution of complex life forms on Earth.
