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]

Jan 16, 2026 · 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.

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.

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 and …

Feb 2, 2023 · ‘Pro’ means ‘before’ and ‘kary’ means ‘nucleus’. Prokaryotes are simple, single-celled organisms that are the most primitive life form on earth. It includes two domains – bacteria and archaea.

Prokaryotes are single-celled organisms belonging to the domains Bacteria and Archaea. Prokaryotic cells are much smaller than eukaryotic cells, have no nucleus, and lack organelles. All prokaryotic …

Jul 22, 2022 · A prokaryote is defined as any organism that is chiefly characterized by a cell devoid of a well-defined (i.e., membrane-bound) nucleus as opposed to a eukaryote that has a nucleus.

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 internal …

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

The meaning of PROKARYOTE is any of the typically unicellular microorganisms that lack a distinct nucleus and membrane-bound organelles and that are classified as a kingdom (Prokaryotae …