AQA - Glucoregulation

Insulin converts glucose to

• glucagon

• glycogen

• glycerol

• glucose

What is glycogen?

• polymer of α-glucose

• polymer of β-glucose

• polymer of amino acids

• polymer of glycerol

Glucagon is

• a neurotransmitter

• released in response to high blood sugar

• secreted by α-cells

• secreted by β- cells

Glucose does NOT come from

• diet

• glycolysis

• gluconeogenesis

• glycogenolysis

Glycolysis is

• converting glycogen to glucose

• synthesising glycogen from glucose

• synthesising glucose from non-carbohydrate sources

• The first stage of aerobic and anaerobic respiration

Adrenaline leads to...

• glycogenolysis

• glycogenesis

• parasympathetic nerve stimulation

• pupil constriction

Insulin leads to

• gluconeogenesis

• increased facilitated diffusion of glucose into hepatocytes

• glycogenolysis

• increased protein kinase activity

Insulin's target cells =

• cells of the Islets of Langerhans

• cells of the hypothalamus

• epithelium of the ileum

• hepatocytes

In the second messenger system, what protein catalyses the formation of cAMP from ATP?

• adenyl cyclase

• protein kinase

• ATPase

• transmembrane receptor protein

Glycogenesis

• Converting glycogen to glucose

• First stage of aerobic and anaerobic respiration

• Synthesising glycogen from glucose

• Synthesising glucose from non-carbohydrate sources