Fructose 6-phosphate → fructose 2,6-bisphosphate

Fructose 1,6-bisphosphate → fructose 6-phosphate

Fructose 6-phosphate → fructose 1,6-bisphosphate

Fructose 1-phosphate → fructose 2,6-bisphosphate

their amount, through repressible expression

their amount, through allosteric regulation

their activity, through inducible expression

their activity, through the presence of isozymes

Fructose 2,6 bisphosphate, which inhibits Phosphofructokinase-1 while stimulating Fructose 1,6-bisphosphatase-1

AMP, which stimulates Phosphofructokinase-1 while inhibiting Fructose 1,6-bisphosphatase-1

ATP, which inhibits both Phosphofructokinase-1 and Fructose 1,6-bisphosphatase-1

Fructose 1,6 bisphosphate, which stimulates Phosphofructokinase-1 while inhibiting Fructose 1,6-bisphosphatase-1

Activation of glucose 6-phosphatase by phosphorylation

Activation of pyruvate kinase by fructose 1,6-bisphsphate

Inhibition of hexokinase by ADP

Inhibition of pyruvate carboxylase by ATP

are metabolised to enter the citric acid cycle only by combining with an existing intermediate of the cycle

are all be metabolised to pyruvate for gluconeogenesis

can all be converted to either glucose or ketone bodies

can be metabolised and enter the citric acid cell cycle as a complete intermediate of the cycle

a conformational change induced by glucose, increasing the affinity of glycogen phosphorylase to phosphorylase b kinase

a conformational change induced by glucose, increasing the affinity of glycogen phosphorylase to the phosphatase, PP1

phosphorylation by phosphorylase b kinase, increasing the affinity of glycogen phosphorylase to the phosphatase, PP1

phosphorylation by PP1, increasing the affinity of glycogen phosphorylase to glucose

can result in the conversion of protein into blood glucose.

helps to reduce blood glucose after a carbohydrate-rich meal.

is activated by the hormone insulin

requires the enzyme hexokinase.

are expressed as identical proteins in all tissues.

use ATP to transport glucose.

transport all monosaccharides with identical efficiency.

transport glucose down a concentration gradient.

Intracellular signalling

Endocrine signalling

Synaptic signalling

Paracrine signalling