Question

Why do only eukaryotic cells possess cell organelles, and prokaryotic cells do not ?

Answer 1

This is bcz the eukaryotic cells bear a well defined nucleus with their own dna and rna due to which all the cell organelles are specified in their function .While in prokaryotic cells the nucleus in not clearly defined due to which the cell organelles are not specified in their function.

Answer 2

Even prokaryotes contain cell organelles that is ribosomes. But Ontologically, the simplicity of prokaryotes refers to their existence outside of organ specialization and thus independent of specialization function per se. Eukaryotes are multicellular, and thus require a more diverse functionality, including the ability to do more than move and take up nutrients from the surrounding milieu to generate energy and support homeostasis. The level of sophistication creates the need for compartmentalization of components which can be called upon when required, creating an efficiency not needed such as when a unicellular organism is meandering along. Hence, prokaryotes don’t seem to ‘need’ compartments, since active diffusion of molecules is enough for all of their encompassed trophic requirements, whilst eukaryotes require a level of sophistication due to the needs of the cells to specialize and cooperate with one another. A more simple answer is that natural selection finds organelles in multicellular organisms an advantage - that’s the true ontological response.