State the similarities and differences between eukaryotic and prokaryotic cells

Prokaryotic cells (bacteria) are exclusively unicellular whereas eukaryotic cells can display attributes of both multicellular and unicellular of a bigger and more complex structure. Eukaryotes are distinguished by having a nucleus with a nuclear envelope as well as membrane bound organelles within their structure. This is opposed to prokaryotic cells only having a main chromosome of single stranded, circular, free DNA within an area of their cytoplasm called the nucleoid as well as plasmids (rings of DNA that replicate identically to the main chromosome). Prokaryotes also have a less effective way of breaking down glucose obtained through food substances to produce ATP for metabolic respiration via anaerobically respiring, as opposed to eukaryotes predominantly respiring aerobically. Prokaryotic cells' walls generally consist of a different molecule to that of eukaryotic cells, they also may have a 3rd protection to their structure that protects the bacterium from phagocytosis and from drying out as well as its ability to secrete poisons. Although not exclusive to prokaryotes; flagella and pili (hair-like, protein fibrous, protrusions) are commonly associated with bacteria as they are accredited to their locomotion and define wehether a bacteria is a pathogen or not.