Table of Contents
- 1 Which eukaryotic organelles probably descended from Endosymbiotic prokaryotes?
- 2 What organelles are in endosymbiotic theory?
- 3 What kind of bacteria likely evolved into the eukaryote chloroplast?
- 4 What cell structures are seen in prokaryotes and eukaryotes?
- 5 How did prokaryotic cells develop into eukaryotic cells?
- 6 How does the endosymbiotic theory explain eukaryotic complexity?
- 7 How are new mitochondria produced in an eukaryotic cell?
- 8 How is the endosymbiont and host cytoplasm symbiotic?
Which eukaryotic organelles probably descended from Endosymbiotic prokaryotes?
Mitochondria and chloroplasts likely evolved from engulfed prokaryotes that once lived as independent organisms. At some point, a eukaryotic cell engulfed an aerobic prokaryote, which then formed an endosymbiotic relationship with the host eukaryote, gradually developing into a mitochondrion.
What organelles are in endosymbiotic theory?
The endosymbiotic theory deals with the origins of mitochondria and chloroplasts, two eukaryotic organelles that have bacteria characteristics. Mitochondria and chloroplasts are believed to have developed from symbiotic bacteria, specifically alpha-proteobacteria and cyanobacteria, respectively.
Which organelle is common in eukaryotic cell and bacteria?
Eukaryotic cells containing mitochondria then engulfed photosynthetic bacteria, which evolved to become specialized chloroplast organelles. In addition to double membranes, mitochondria and chloroplasts also retain small genomes with some resemblance to those found in modern prokaryotes.
What kind of bacteria likely evolved into the eukaryote chloroplast?
Some of the small cells were cyanobacteria. They were specialized for photosynthesis. They evolved into the chloroplasts of eukaryotic cells.
What cell structures are seen in prokaryotes and eukaryotes?
Both prokaryotic and eukaryotic cells have structures in common. All cells have a plasma membrane, ribosomes, cytoplasm, and DNA. The plasma membrane, or cell membrane, is the phospholipid layer that surrounds the cell and protects it from the outside environment.
Do eukaryotic cells have bacteria?
All prokaryotes are single-celled (unicellular) organisms. Bacteria and Archaea are the only prokaryotes. Organisms with eukaryotic cells are called eukaryotes….Prokaryotic Cells.
| Prokaryotic Cells | Eukaryotic Cells | |
|---|---|---|
| Examples | Bacteria | Plants, animals, fungi |
How did prokaryotic cells develop into eukaryotic cells?
According to the endosymbiotic theory, the first eukaryotic cells evolved from a symbiotic relationship between two or more prokaryotic cells. Smaller prokaryotic cells were engulfed by (or invaded) larger prokaryotic cells. They evolved into the mitochondria of eukaryotic cells.
How does the endosymbiotic theory explain eukaryotic complexity?
The endosymbiotic theory provides a way to explain the complexity of eukaryotic cells. This explanation is based on: What types of biological abilities can be combined to create more capable, more complex cells?
How is the endosymbiont related to the mitochondria?
Evolutionary Origin of Mitochondria. For example, Paramecium bursaria are hosts for zoochlorellae, photosynthetic protists, that reside within the cytoplasm. The relationship appears to be symbiotic. The endosymbiont gains protection and possibly some essential nutrients from the host cytoplasm.
How are new mitochondria produced in an eukaryotic cell?
New mitochondria inside eukaryotic cells are produced by: The dividing of mitochondria already present in the cell. Chloroplasts in a eukaryotic cell have both an inner and outer membrane. The inner membrane of chloroplasts is similar to:
How is the endosymbiont and host cytoplasm symbiotic?
For example, Paramecium bursariaare hosts for zoochlorellae, photosynthetic protists, that reside within the cytoplasm. The relationship appears to be symbiotic. The endosymbiont gains protection and possibly some essential nutrients from the host cytoplasm.