what does a eukaryote have that a porkaryote doesnt have
The main difference between prokaryotes and eukaryotes is the presence of a distinct nucleus in eukaryotic cells, which contains genetic material. Prokaryotic cells lack a nucleus and their genetic material is dispersed in the cytoplasm. Eukaryotic cells are typically larger and more complex, with membrane-bound organelles, while prokaryotic cells are generally smaller and simpler in structure.
There are many different one celled green organisms, but one of the most important to us is the blue-green algae, better known as cyanobacteria. These creatures are responsible for most of the free oxygen in our atmosphere.
The general efficiency of a cell is largely determined by its surface-to-volume ratio. Crudely, it gauges how much of the cellular volume is present compared to the surface area of the cell. As the cell gets larger, its volume measurement increases faster than its surface area measurement, making the ratio smaller. The larger the cell gets, the less efficient it becomes as its cellular material is far removed from each other. (Especially for Oocytes that are up to 100 microns in size) Prokaryotes do not need nuclear membranes because they are comparably smaller than eukaryotic cells and thus their cellular material is close to each other for the efficient progression of biochemical processes. As such, they do not need a membrane. DNA-related processes are carried out in the nucleoid instead.