cell envelope and it's modifications class 11th
Answers
What is the various modification of the cell envelope of prokaryotic cells with functions?
It's mesosome, they are extensions of plasma membrane. It is only found in prokaryotic cells.
Mesosome are observed in three forms such as vesicle-like, tubule-like and lamallae-like. It increases enzymatic content of cell means act like a lysosome, and it also helps in DNA replication at nucleus and it's distribution to daughter cells. It also helps in respiration like an mitochondria. But as we know that prokaryotes lack membrane bound organelles like mitochondria, golgi bodies etc .
Mesosomes also carry out important functions like secretion and cell wall formation.
Mesosomes are of very importance in prokaryotic cells, because mesosome performs functions of various cell organelles.
Really mesosome is savoir of prokaryotes in absense or various organelles.