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What is the process whereby the mitochondria and chloroplasts of protists arise?
The process whereby mitochondria and chloroplasts in protists arise is through endosymbiosis, where an ancestral eukaryotic cell engulfed a prokaryotic cell (which evolved into a mitochondria or chloroplast) forming a symbiotic relationship. Over time, these organelles integrated into the host cell and developed a mutually beneficial relationship, providing energy and photosynthetic capabilities to the host cell.
Which organelle is believed to have been a symbiont of an ancient cell?
Mitochondria are believed to have originated as symbiotic bacteria that were engulfed by ancestral eukaryotic cells. This theory is known as endosymbiosis and is supported by evidence such as the mitochondria having their own DNA and ribosomes.
Is it true mitochondria and chloroplasts originated in bacteria?
It is thought that chloroplasts and mitochondria were prokaryotic organisms and they were engulfed by a eukaryotic organism and instead of being digested by the cell a symbiotic relationship was formed. this is called endosymbiosis. the first scientist to pioneer this kind of thinking was Mereschkowsky back in 1905. Taking chloroplast as the example, most of the genes from the chloroplast genome have been intergrated into the nulcear genome. Those that are left are conserved in both the chloroplast genome and the cyanobacteria genome. (the cyanobacteria is the prokaryotic organisms that is thought to have been engulfed, thus creating the ancestor to the modern chloroplast). For example, the gene for bacterial cell division is also found in the chloroplast genome. Comparing both the modern chloroplast genome and the modern cyanobacteria genome it is possilbe to see just how many genes that where originally chloroplast based have jumped ship and gone to the nuclear genome. Both animals and plants contain mitochondria but only plants contain chloroplasts. This suggests that the endosymbiotic relationship between the eukaryotic cell and the mitcohondria happen before the animal and plant lines diverged.
Chloroplasts is prokaryoty or euroryote?
Chloroplast cant be classified as a cell, but some research says that it may have been prokaryotic ages ago, as with mitochondria.
Where do scientists believe mitochondria and chloroplasts originated?
Some scientists believe that mitochondria and chloroplasts were at one time independent-living bacteria that were engulfed by eukaryotic cells, forming an endosymbiotic relationship. This is because both mitochondria and chloroplasts have their own DNA and replicate themselves within the cells in which they occur.
What kind of bacteria evolved into the eukaryote chloroplast?
It is believed that cyanobacteria, also known as blue-green algae, evolved into the eukaryote chloroplast through a process called endosymbiosis. This process involved a cyanobacterium being engulfed by a eukaryotic cell and forming a symbiotic relationship, eventually leading to the development of the chloroplast organelle found in plant and algal cells.
What does endosymbiosis mean?
Endosymbiosis is a type of symbiotic relationship in which one organism lives inside the cells or tissues of another organism. This mutualistic relationship can be beneficial to both organisms involved. An example of endosymbiosis is the relationship between mitochondria and eukaryotic cells.
Eukaryotic cells acquired mitochondria and chloroplasts by?
engulfing prokaryotic cells through a process called endosymbiosis. Over time, these prokaryotic cells formed a mutualistic relationship with the host cell, eventually evolving into the mitochondria and chloroplasts found in eukaryotic cells today.
Where did mitochondria originate from?
Mitochondria are believed to have originated from ancient bacteria that were engulfed by early eukaryotic cells through a process called endosymbiosis. This symbiotic relationship eventually led to the evolution of mitochondria as specialized organelles within eukaryotic cells.
What is the process whereby the mitochondria and chloroplasts of protists arise?
The process whereby mitochondria and chloroplasts in protists arise is through endosymbiosis, where an ancestral eukaryotic cell engulfed a prokaryotic cell (which evolved into a mitochondria or chloroplast) forming a symbiotic relationship. Over time, these organelles integrated into the host cell and developed a mutually beneficial relationship, providing energy and photosynthetic capabilities to the host cell.
What two organelles have become part of the eurkaryote cell because of endosymbiosis?
The mitochondria and chloroplasts are believed to have become part of the eukaryotic cell through endosymbiosis. They were previously independent prokaryotic organisms that were engulfed by ancestral eukaryotic cells, forming a symbiotic relationship over time.
Which organelle is believed to have been a symbiont of an ancient cell?
Mitochondria are believed to have originated as symbiotic bacteria that were engulfed by ancestral eukaryotic cells. This theory is known as endosymbiosis and is supported by evidence such as the mitochondria having their own DNA and ribosomes.
What does the endosymbiosis theory propose?
The endosymbiosis theory proposes that eukaryotic cells evolved from symbiotic relationships between different prokaryotic organisms. It suggests that organelles such as mitochondria and chloroplasts were once independent prokaryotes that were engulfed by a host cell, eventually forming a mutually beneficial relationship.
Do they both have chloroplast?
no just eukaryotic
What is endosymbiosis?
Endosymbiosis is a process in which one organism lives inside another and they form a mutually beneficial relationship. This concept is often used to explain the origins of organelles such as mitochondria and chloroplasts in eukaryotic cells.
What is the role of endosymbiosis in the evolution of eukaryotic cells?
Endosymbiosis played a crucial role in the evolution of eukaryotic cells by allowing for the incorporation of symbiotic bacteria that eventually evolved into organelles like mitochondria and chloroplasts. This process helped eukaryotic cells gain new functions and capabilities, leading to their complexity and diversity.
Is Endosymbiosis Is A Theory Based On The Resemblance of?
Endosymbiosis is a theory based on the idea that eukaryotic cells evolved from a symbiotic relationship between different prokaryotic organisms. It is supported by the resemblance of organelles, such as mitochondria and chloroplasts, to free-living bacteria. This theory suggests that these organelles were once independent bacteria that were engulfed by a host cell and established a mutually beneficial relationship.
