what was the process the endosymbiosis theory?
a) larger bacteria (pro) cell engulfed mitochondria then the chloroplasts b) overtime they multipliedc) and then they created the eukaryotic cells
The endosymbiosis theory proposes that eukaryotic cells evolved from simpler prokaryotic cells through the process of symbiosis. According to this theory, several billion years ago, free-living bacterial cells were engulfed by larger host cells. Instead of being digested, the bacteria survived and established a mutually beneficial relationship with their host cells. Over time, the bacteria evolved into organelles such as mitochondria and chloroplasts, which are now essential components of eukaryotic cells.
This theory is supported by several lines of evidence, including:
1. Structural similarities: Mitochondria and chloroplasts have similar structures to bacterial cells, including a double membrane, circular DNA, and ribosomes.
2. Genetic similarities: Mitochondria and chloroplasts have their own DNA, separate from the nuclear DNA of the host cell. This DNA is also similar in structure to bacterial DNA.
3. Endosymbiotic relationships in nature: There are many examples of endosymbiotic relationships in nature, where one organism lives inside another and provides some benefit. For example, many species of coral have photosynthetic algae living inside their tissues.
Overall, the endosymbiosis theory provides a compelling explanation for the origin of eukaryotic cells and their complex organelles.
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