MICROSOMES ::
They are minute particles they occupy one fourth of the weight of the cell they contain more fat as compared to mitochondrial cells
PLASMOSIN: it is found in cytoplasm and it consists of long protein molecules especially deoxyribo nucleprotein
Vacuoles : vacuoles are found in cytoplasm of the cell they are covered by fatty material
lysosomes ;; these are the suicide bags of the cells which contain more than dozen powerful hydrolytic enzymes capable of digesting the very substance of the cell the living cell is protected from this disastrous result by the membrane of the lysosome which in some way not yet understood holds in the lytic enzymes without itself being digested at the time of death of the cell the lysosome membrane ruptures their enzymes spill out and self digestion or autolysis of the body cells ensues
despite their potential danger the lysosomes perform important functions in the cell they are the cell digestive organelles their appearance varies greatly according to the phase of their activity indeed lysosomes are so variable that they cannot be identified by appearance alone but rather by the presence of lytic enzymes particals taken into the cell as well as various complex chemical compounds synthesized within the cell are broken down by and in the lysosomes into smaller fragments that can pass through the mitochondrial membrane and be utilized in the cell energy metabolism broken mitochondria and other bits of cell debris are removed after digestion in the lysosome are particularly active in phagocytes which are white blood cells that engulf microbes and other invading foreign particles the lytic enzymes of ruptured lysosomes are the key factors in the breakdown of individual cells that have diet clearing the way for their replacement
0 Comments