Haritha,Subject Matter Expert at Edumarz
Solution:Mesosome is a membranous structure in prokaryotes.It is formed by extensions formed by plasma membrane into the cell.These extensions formed by plasma membrane appear in the form of vesicles,tubules and lamellae.
Functions of mesosome
Help in formation of cell wall
Help in replication of DNA and distribute it to the daughter cells
Help in respiration
Help in secretion process to increase surface area and also to increase enzymatic content
Features of prokaryotic cells
Prokaryotic cells contain a cell wall covering the cell membrane exception:mycoplasmas lack cell wall
Absence of a well defined nucleus
Genetic material of prokaryotes is naked and not surrounded by nuclear membrane
Presence of small circular DNA in addition to the genomic DNA.The small circular DNA is called plasmids.
Absence of membrane bound cell organelles
Presence of non-membrane bound organelles like ribosomes