A prokaryote (/ proʊˈkærioʊt, - ət /; less commonly spelled procaryote) [1] is a microorganism whose usually single cell lacks a nucleus or other membrane-bound organelles. [2]

Nov 20, 2025 · Prokaryote, any organism that lacks a distinct nucleus and other organelles due to the absence of internal membranes. Bacteria are among the best-known prokaryotic organisms.

A prokaryote is a simple, single-celled organism that lacks a nucleus and membrane-bound organelles. We’ll talk more about the nucleus and organelles in the next article on eukaryotic …

May 24, 2024 · Prokaryotes are single-celled organisms that are the earliest and most primitive forms of life on Earth. As organized in the Three Domain System, prokaryotes include bacteria …

Jul 26, 2025 · Prokaryotes represent a fundamental category of life forms, distinguished by their cellular organization. These microscopic organisms are single-celled and lack the complex …

Jan 30, 2025 · Prokaryotes are small, single-celled organisms with a simple structure. Unlike other cells, they don’t have a nucleus or other membrane-bound organelles.

Prokaryotic cells differ from eukaryotic cells in several key ways. Figure 1. The features of a typical prokaryotic cell are shown. A prokaryotic cell is a simple, single-celled (unicellular) …

Prokaryotes are small and lack membrane-bound nuclei. Prokaryotic cells comprise bacteria and archaea. Their genetic material isn’t stored within a membrane-bound nucleus. Instead, it is …

The name “prokaryote” suggests that prokaryotes are defined by exclusion—they are not eukaryotes, or organisms whose cells contain a nucleus and other internal membrane-bound …

Prokaryotes are organisms whose cells lack a nucleus and other organelles. This class of organisms includes all of the bacteria.