Prokaryo
Prokaryo, a shorthand for prokaryote, refers to unicellular organisms that lack a nucleus and other membrane-bound organelles. The term is used for members traditionally grouped into Bacteria and Archaea. Prokaryotes are one of the two major cellular lineages alongside eukaryotes.
They have a nucleoid where the genome resides, typically a single circular chromosome, and often plasmids. They
Genetics and reproduction: Their genomes are generally small and haploid, and reproduction is mainly by binary
Metabolism and ecology: Prokaryotes show diverse metabolisms, including photoautotrophy, chemotrophy, and mixotrophy. They occupy nearly every
Classification and evolution: Historically, prokaryotes were grouped into Bacteria and Archaea, separate from the eukaryotic domain.
Relevance: Prokaryotes are central to microbiology, medicine, and industry; they include model organisms, producers of antibiotics