Was sind eukaryotische und prokaryotische Zellen?!
Biologie - simpleclub・2 minutes read
Eukaryotic cells have a complex structure with a cell nucleus, organelles like mitochondria and chloroplasts, while prokaryotic cells lack a nucleus and organelles, having genetic material floating freely in the cytoplasm. The endosymbiont theory proposes that eukaryotic cells evolved from prokaryotic cells through symbiosis, with smaller cells being absorbed and specialized to form more complex organisms, with eukaryotic cells having a cytoskeleton and plants/fungi possessing a cell wall in addition to the membrane, unlike prokaryotic cells.
Insights
- Eukaryotic cells are characterized by a cell nucleus, organelles like mitochondria and chloroplasts, a cytoskeleton for structure, and a cell wall in plants and fungi, all contributing to their complexity and functional diversity.
- The endosymbiont theory proposes that eukaryotic cells evolved from prokaryotic cells by incorporating smaller cells through symbiosis, leading to the development of more advanced organisms with specialized functions and structures.
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Recent questions
What distinguishes eukaryotic cells from prokaryotic cells?
Eukaryotic cells have a cell nucleus and organelles.
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Summary
00:00
Cell Evolution and Structure in Organisms
- Eukaryotic cells have a cell nucleus and various organelles, including mitochondria and chloroplasts, responsible for energy production and photosynthesis, respectively.
- Prokaryotic cells lack a cell nucleus and organelles, with their genetic material floating freely in the cytoplasm, allowing protein synthesis to occur directly next to the DNA.
- The endosymbiont theory suggests that eukaryotic cells evolved from prokaryotic cells through a process of symbiosis, where smaller cells were absorbed and specialized, leading to the development of more complex organisms.
- Eukaryotic cells have a cytoskeleton for structure and movement, while plants and fungi also possess a cell wall in addition to the cell membrane, distinguishing them from prokaryotic cells that lack a cytoskeleton and have a simpler structure.
