Complex sentence: While insulin increases the uptake of glucose from blood by translocation and exocytosis exocytosis of GLUT4 storage viscles in the muscle and fat cells, it also inhibits the release and production of glucose from the cells.
Split into simpler sentences: While insulin increases the uptake of glucose from blood by translocation and exocytosis of GLUT4 storage viscles in the muscle and fat cells. It also inhibits the release and production of glucose from the cells.