- It is the structural and functional unit of life.
- Cell is discovered by Robert Hooke in 1665 with help of microscope which was made by himself.
- We have idea that all the living things have a single lives but inside a living being there is a lot of small lives.
For example:- your blood have lots of red blood cell , white blood cell and it can be survive outside the human body.
- So the Robert Hooke discover the cell and new idea or theory about life or living being.
- Cell is of two types:-
- prokaryotic cell:- The cells which lack the nuclear membrane around its genetic material is called prokaryotic cell.
- Prokaryotic cells are present in prokaryotes.
- Archaebacteria ,Bacteria , Cyanobacteria are comes under prokaryotes.
- Eukaryotic cell:- The cell having nuclear membrane around its genetic material is called eukaryotic cell.
- Eukaryotic cells are present in eukaryotes.
- Protists, Fungi, plants and Animals are comes under eukaryotes.
- Difference between prokaryotic cell and eukaryotic cell:-
- Prokaryotic cells are incomplete cell whereas Eukaryotic cell are complete cell.
- Prokaryotic cell lack nuclear membranes around its genetic material(DNA) whereas eukaryotic cell have nuclear membrane around its genetic material.
- Prokaryotic cells lack membrane bound cell organelles whereas Eukaryotic cell contain membrane bound organelles.
- Prokaryotic cells are generally small in comparison with eukaryotic cell.
- Prokaryotic cell lack of nucleus and nucleolus whereas Eukaryotic cell contains nucleus and nucleolus.
- Prokaryotic cell contains single chromosome whereas eukaryotic cell contains more than one chromosome.
- Prokaryotic cell divides by the process of fission or budding but eukaryotic cell divide itself by the process of mitotic or meiotic division.
SIMILARITIES IN PROKARYOTIC AND EUKARYOTIC:-
- Both have plasma membrane, cytoplasm and DNA.
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