| Front | Roles of insulin |
|---|---|
| Back | Beta cells in IOL detect inc blood glucose conc and secrete insulin in blood, most cells contain insulin receptors on cell-surface membranes and so when insulin binds, its changes TS of glucose channels (now open) and glucose moves into cells, insulin also activates enzymes that convert glucose into glycogen/fats therefore insulin; - dec blood glucose levels by inc rate of absorption of glucose into cells - inc rate of glycogenesis (stimulates liver to convert glucose into glycogen) - inc rate of glucose conversion into fats - inhibits release of glucagon by alpha cells |
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