What is a cell?
What all do cells share?
What is a prokaryote?
A prokaryote is a microscopic single-celled organism that has neither a distinct nucleus with a membrane nor other specialized organelles. Prokaryotes include the bacteria and cyanobacteria. Most prokaryotes are tiny single cells, others can form larger multi-celled structures. Prokaryotes have been utilized as sources of enzymes that work under extreme conditions. Prokaryotic cells are divided into Bacteria and Archaea. Bacteria is the most familiar prokaryote. Bacteria is a very diverse group that has several shapes depending on the species. As for Archaea, they are also diverse but resemble the bacteria in general appearance. The domain Archaea, can live in extreme environments.
What is a eukaryote?
Similarities of Prokaryotes and Eukaryotes
- They both have DNA as a genetic material
- They are both membrane bound
- They both have ribosomes
- They both have similar metabolism
- They are both diverse in forms
Differences of Prokaryotes and Eukaryotes
- have a nucleus
- have membrane-bound organelles
- cells are ten times the size of prokaryotes
- the DNA is much more complex and much more extensive
- the DNA is held within the nucleus and is associated with proteins
- have a cell composed of peptidoglycan, a single large polymer of amino acids and sugar.
- the DNA floats freely around the cell
- live a wide variety of environments
- all cells have a cell wall
- are all bacteria