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  1. Prokaryote - Wikipedia

    Prokaryotic cells are usually much smaller than eukaryotic cells. This causes prokaryotes to have a larger surface-area-to-volume ratio, giving them a higher metabolic rate, a higher growth rate, and as …

  2. Prokaryotic Cell - Definition, Examples & Structure | Biology Dictionary

    Dec 18, 2016 · Unlike a eukaryote, a prokaryotic cell does not have a nucleus or membrane-bound organelles. Bacteria are an example of a prokaryotic cell.

  3. Prokaryote | Definition, Example, & Facts | Britannica

    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. The …

  4. Prokaryotic Cells: Structure, Function, and Definition - ThoughtCo

    May 24, 2024 · Prokaryotic cells are single-celled organisms that are the earliest and most primitive forms of life on earth, including bacteria and archaeans.

  5. Prokaryotic Cell Diagram and Facts

    Jun 14, 2023 · A prokaryotic cell is a type of cell that lacks a defined nucleus and other membrane-bound organelles. These cells are structurally simpler and smaller than their eukaryotic counterparts, …

  6. Prokaryotic cells (article) | Khan Academy

    Despite these similarities, prokaryotes and eukaryotes differ in a number of important ways. A prokaryote is a simple, single-celled organism that lacks a nucleus and membrane-bound organelles.

  7. Structure of Prokaryotes: Bacteria and Archaea – Introductory …

    There are many differences between prokaryotic and eukaryotic cells. The name “prokaryote” suggests that prokaryotes are defined by exclusion—they are not eukaryotes, or organisms whose cells …

  8. prokaryote / procariote | Learn Science at Scitable - Nature

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

  9. Prokaryotes: Definition in Biology and Key Characteristics

    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 …

  10. Prokaryotic Cells: Definition, Structure and Characteristics

    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.