Difference Between Prokaryotic And Eukaryotic Cell

Biology Notes
Difference Between Prokaryotic And Eukaryotic Cell
For: Science Class 11

In unicellular organisms the body is single cell, single cell perform all the life activities, Cells are larger in size, easily infected and susceptible for damage, Amoeba, Paramecium In multicellular organisms, number of different types of cells forms body, the body function is outcome of the cellular activities of different cells, cells are usually smaller is size, not easily susceptible to damage, higher plants and animals There are two types of cells found in organisms. The differences are as follows.

Prokaryotic cell

Eukaryotic cell

Small in size (range from 100-10000nm)  Usually gelatinous sheath is present  Cell wall is made up of amino sugar and muramic acid.  Mesosome is present, the power house of the cell  Nuclear membrane and nucleolus is absent  DNA is found freely in cytoplasm  Histone protein is absent in DNA, So called naked DNA  Cell organelles are absent  Flagella is simple.  Pili are present  Ribosomes are small and 70 S type.  Plasmid may be present  Cyclosis is absent  Cell division is amitosis.  Cell cycle is short  Spindle fibers are absent  Bacteria and Cyanobacteria are examples.

Larger in size (range from 10000-100000nm)  Usually gelatinous sheath absent  In animal cell, cell wall is absent but in plant cell it is made up of cellulose  Mesosome is absent. Mitochondria are power house of the cell  Nuclear membrane and nucleolus are present  DNA is bounded by nuclear membrane.  Histone protein is present in DNA so called closed DNA  Cell organelles are present  Flagella are compound (9+2 pattern)  Pili absent  Ribosomes are large and 80S type  Plasmid is absent  Cyclosis is present  Cell division is mitosis and meiosis  Cell cycle is long  Spindle fibers are present  Higher plants and animal cell are Examples: