Prokaryotic Cells - GCSE Biology Definition

Reviewed by: Lára Marie McIvor

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Prokaryotic cells are the simplest and most ancient type of cells. Unlike eukaryotic cells, they do not have a nucleus or other membrane-bound organelles. Their DNA is found free in the cytoplasm, in a region called the nucleoid. Prokaryotic cells are usually smaller and less complex than eukaryotic cells and include bacteria and archaea. They often have a cell wall for shape and protection. Understanding prokaryotic cells is important in GCSE Biology because they help us explore the diversity of life and play key roles in processes like fermentation and decomposition.

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Lára Marie McIvor

Reviewer: Lára Marie McIvor

Expertise: Biology, Psychology & Sociology Subject Lead

Lára graduated from Oxford University in Biological Sciences and has now been a science tutor working in the UK for several years. Lára has a particular interest in the area of infectious disease and epidemiology, and enjoys creating original educational materials that develop confidence and facilitate learning.

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