Difference Between Prokaryotic And Eukaryotic Cells

Difference Between Prokaryotic and Eukaryotic Cells

Recently we had explored the domain eukarya, its history, kingdoms and characteristics in detail. In this article, we will explore the difference between prokaryotic and eukaryotic cells. The distinction between prokaryotes and eukaryotes is considered to be one of the most important variations among groups of organisms.

What is a Prokaryotic cell?

Prokaryotes are single cell organisms (unicellular) which do not contain organelles or any internal membrane structures. That means that they have a single chromosome and no nucleus but instead they have nucleoid (a circular container that has double-stranded DNA). These organisms belong to domain Prokarya.

What is a Eukaryotic cell?

Eukaryotes are multi-cellular organisms and they contain a nucleus and other organelles encapsulated within membranes. From organization perspective, they belong a domain Eukarya.

Difference Between Prokaryotic And Eukaryotic Cells

The table below summarizes their similarities as well as their differences.

Features Prokaryotes Eukaryotes
Origin Around 3.5 billion years ago Around 2 billion years ago
Size 0.1–5.0µm in diameter 10-100µm in diameter
Cellular Organization Most are unicellular Most are multicellular
Genetic Material The genetic material (DNA) is suspended in the nucleoid. The genetic material (DNA)is found in the nucleus
Shape Of Genetic Material DNA is circular DNA is linear and is packed with histone proteins.
Number Of Chromosomes Only one Multiple chromosomes are present
Nucleus No nucleus Has a membrane bound nucleus
Plasma Membrane Made up of peptidoglycan Made up of phospholipids
Cytoplasm Has cytoplasm Has cytoplasm
Organelles No organelles wrapped in membranes Has organelles wrapped in membranes (e.g. mitochondria, Golgi bodies, smooth and rough ER, vacuoles, etc.)
Cytoskeleton Present None
Glycocalyz Present Only in some
Ribosomes Made up of rRNA and proteins Made up of rRNA and proteins
Flagella Present Present
Asexual Reproduction Possible through binary fission Possible through mitosis
Examples Bacteria Animals, plants, fungi, rhizarians chromoalveolates, and excavates.

Cite this article as: "Difference Between Prokaryotic And Eukaryotic Cells," in Bio Explorer, December 25, 2016, https://www.bioexplorer.net/difference-between-prokaryotic-and-eukaryotic-cells.html/.

Difference Between Prokaryotic And Eukaryotic Cells
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