Delete Content. A plasma membrane is permeable to specific molecules that a cell needs. Transport proteins in the cell membrane allow for selective passage of specific molecules from the external environment. Each transport protein is specific to a certian molecule (indicated by matching colors).
The pancreas contains cells which release both insulin and glucagon. The endocrine system consists of a number of different glands which secrete hormones that dictate how cells and organs behave.
Pancreas' endocrine function. secretes insulin, glucagon, somatastatin. insulin. secreted by pancreas when glucose is high and it lowers blood glucose levels by pushing glucose into the cells and stores exes glucose as fat. somatastatin.