when the blood glucose concentration increases above the normal range
where and how is glucose absorbed?
glucose is absorbed in the B cells via carrier proteins by facilitated diffusion
where do insulin vesicles act on?
insulin vesicles move towards the cell surface membrane where they are released into the capillaries and collide into every cell but only act on the liver, muscle and fat cells
why do insulin only bind to specific cells?
only fat, muscle and liver cells have the complementary receptor protein
