How to Differentiate Between Prokaryotic and Eukaryotic Cells:
This is the guest post by Lakshmi
Based on cell architecture there are two cellular domains.
These are : 1.prokaryotic cell
2.eukaryotic cell
Enjoy :)
This is the guest post by Lakshmi
Based on cell architecture there are two cellular domains.
These are : 1.prokaryotic cell
2.eukaryotic cell
CHARACTER
|
PROKARYOTIC CELL
|
EUKARYOTIC CELL
|
Organisms
|
Bacteria, Archea
|
Fungi, Plants, Animals
|
Cell size
|
2microns
|
2-100microns
|
Nuclear Structure&organization
|
No well defined nucleus
No true nucleus
No nuclear envelope
|
Well defined nucleus
True nucleus
Nuclear envelope is present
|
Chromosomes
|
Bacterial chromosomes composed Of a single,
circular, covalently closed double stranded helical & negatively super
coiled DNA
|
E.K chromosome is composed of single,
linear, double stranded, helical &negatively
super coiled DNA
|
Extra chromosomal genetic material
|
plasmids are present
|
plasmids are rare, Found in yeast
|
plasma membrane
|
sterols are absent expect Mycoplasma bacterial
plasma membrane have sterol like components called Hapanoids
|
sterols are present &act as membrane strengthen
agents
|
cell wall
|
cell wall present except plancomycetes It is
made up of peptide glycon
|
Animal cell do not have cell wall plants,
fungal cells have cell wall
|
Storage polymers
|
poly beta hydroxyl butyric acid granules
|
plants-starch animals-glycogen Fungi-glycogen
&oil granules
|
Gas vacuoles
|
Present Involved in phototaxis
|
Absent
|
Magnetosomes
|
present
|
Absent
|
Pili
|
present
|
Absent
|
Flagella
|
no 9+2 pattern,it is made up of Flagellin,
&shows rotatory motion
|
characteristic 9+2 pattern present &
shows beating motion
|
Sexual Reproduction
|
absent, conjugation is primitive type of recombination
|
present, recombination occur
|
Cell division
|
mitosis is absent, divided by Amitosis,
division is mediated by Septasomes/devisomes
|
mitosis, meiosis are present
|
Respiratory
Apparatus
|
plama membrane
|
mitochondria
|
Photosynthetic Appatatus
|
chromatophores
|
chloroplasts in plants
|
Organelles
|
absent, only ribosomes present
|
present
|
Ribosomes
|
70s
|
80s
|
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