Caste: Caste, any of the ranked, hereditary, endogamous social groups, often linked with occupation, that together constitute traditional societies in South Asia, particularly among encyclopÃdia britannica
Reticuloendothelial System (RES). a system of cells of mesenchymal origin in vertebrate animals and in man that can be converted to actively mobile phagocytic cells (macrophages).I.I.eticuloendothelial System (RES). a system of cells of mesenchymal origin in vertebrate animals and in man that can be converted to actively mobile phagocytic cells (macrophages). I.I.
The endoplasmic reticulum is a membrane system of folded sacs and interconnected channels that serves as a site for protein and lipid synthesis. The various folds of the endoplasmic reticulum provide a large surface where cellular functions can take place. There are two types of endoplasmic reticulum: smooth and rough. Rough endoplasmic reticulum is a form of endoplasmic reticulum that is studded with ribosomes. Since it has ribosomes stuck all over it, it has a bumpy appearance and is therefore called rough endoplasmic reticulum.