Since amino acids are needed to make proteins, which are essential for growth and repair of body tissues, these cannot be used only to produce glucose.

Glucagon also act on your liver and kidneys to produce and release glucose by gluconeogenesis.

The liver's ability to produce glucose (gluconeogenesis) is usually the last function to be lost in the setting of fulminant liver failure.

The rest left over is used to produce glucose.

Eventually the frog produces so much glucose that its tissues are completely protected from the cold.

In times of fasting, your pancreas releases glucagon so that your body can produce glucose.

Gluconeogenesis produces glucose from protein and amino acid materials.

The kidney in humans is capable of producing glucose from lactate, glycerol and glutamine.

The renal medulla is incapable of producing glucose due to absence of necessary enzymes.

In photosynthesis, plants use light energy to produce glucose from carbon dioxide.