Question

Which of the following does NOT occur after insulin is released by the pancreas?

		insulin binds to receptors on cell surfaces
		a protein kinase cascade is begun that leads to glycogen synthesis
		glucose transporters (GLUTs) move glucose out of the blood and into the cell
		Fructose 1,6-bisphosphatase is activated

Answer 1

Insulin binds to receptors on cell surface and it activates protein cascade , this causes translocation of glut receptors to cell surface and cells take more amount of glucose from the blood, decreasing blood glucose levels. Excess glucose in the cells is converted to glycogen.

Here option a is incorrect as insulin binds to cell receptors

Option B is incorrect as protein cascade gets activated due to insulin release which further cases glycogen production.

Here option c is incorrect because glucose is loved into the cell.

Option D is correct answer as this doesn't occur due to insulin release. Fructose 1,6 bisphosphatase converts fructose 1,6 bisphosphate to fructose 6 phosphate ,it is inhibited by insulin as this enzyme is active in phosphorylated state but insulin causes dephosphorylation of enzymes .

Fructose 1,6 bisphosphatase is an enzyme of gluconeogenesis.