Biology, Prokaryotic & Eukaryotic Cells YouTube Lecture Handouts

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Prokaryotic Cell: Shape, Structure, Gram Positive & Gram Negative Bacteria

Prokaryotic & Eukaryotic Cells

23 Differences

Differences of Prokaryotic and Eukaryotic Cells Image - 1
Differences of Prokaryotic and Eukaryotic Cells Image - 2
Eukaryotic Cell Versus Prokaryotic Cell Comparison Chart
Eukaryotic CellProkaryotic Cell
Number of chromosomesMore than oneOne - but not true chromosome: Plasmids
Cell TypeUsually multicellularUsually unicellular (some cyanobacteria may be multicellular)
True Membrane bound NucleusPresentAbsent
ExampleAnimals and PlantsBacteria
Genetic RecombinationMeiosis and fusion of gametesPartial, undirectional transfers DNA
Lysosomes and peroxisomesPresentAbsent
MicrotubulesPresentAbsent or rare
Endoplasmic reticulumPresentAbsent
CytoskeletonPresentMay be absent
DNA wrapping on proteins.Eukaryotes wrap their DNA around proteins called histones.Multiple proteins act together to fold and condense prokaryotic DNA. Folded DNA is then organized into a variety of conformations that are supercoiled and wound around tetramers of the HU protein.
Golgi apparatusPresentAbsent
ChloroplastsPresent (in plants)Absent; chlorophyll scattered in the cytoplasm
FlagellaMicroscopic in size; membrane bound; usually arranged as nine doublets surrounding two singletsSubmicroscopic in size, composed of only one fiber
Permeability of Nuclear MembraneSelectivenot present
Plasma membrane with steroidYesUsually no
Cell wallOnly in plant cells and fungi (chemically simpler)Usually chemically complexed
Cell size10 - 100 um1 - 10 um

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