14.3: regulating blood glucose levels

Glycogenesis

Creation of glycogen from glucose

Gluconeogenesis

Creation of glucose from a new source, eg an amino acid

Glycogenolysis

Break down of glycogen into glucose

What are Normal blood glucose levels?

90mgcm^-3 of blood

An instance where BLG levels increase

After eating

An instance wheee BLG levels decrease

Fasting or exercise

Which cells in the islets of langerhams detect low BLG levels

Beta cells in the islets of langerhans

How do beta cells detect BGL increase and how do they combat it

Using glucose transporters, and they release Insulin. Glucagon is then excreted by alpha glucose cells, there’s a rise in glucose uptake in cells, which means respiration rates increase, and glycogenesis increases too

Which cell detects low BGLs? What happens to combat it?

Alpha cells, then release glucagon, and glycogenolysis increases, like gluconeogenesis, so that the BGL return to normal