PROKARYOTIC CELL STRUCTURE DETAILS

Prokaryotic cell ;

Cell wall - present in most but in all cells

Plasma membrane - present 

Nucleus - Absent

Nuclear membra - Absent

Chromatin with histone - Absent

Genetic material - Circular or linear , double stranded DNA : genes are not interrupted by intron 

Nucleoli and mitotic apparatus - Absent

Plasmids - commonly present

CELLULAR ORGANELLES :

       1. Mitochondria - Absent

       2. Endoplasmic reticulum - Absent

       3. Vacuoles - Absent

       4. Lysosome - Absent

       5. Chloroplasts - Absent

       6. Centrioles - Absent

       7. Ribosomes - present ( 70S )

       8. Microtubules - Absent

       9. Flagella - Simple structure composed of the protein flagellin

      

Respiration - Many strict anaerobes

 ( Oxygen fatal )

Metabolic patterns - Great variations

Sexual system - Rare : if present one way ( and usually partial ) ; transfer of DNA from donor to recipient cell occurs.