Opal is considered the birthstone for people born in October. Famous opals. The Olympic Australis, the world's largest and most valuable gem opal [citation needed], found in Coober Pedy; The Andamooka Opal, presented to Queen Elizabeth II, also known as the Queen's Opal
1 Carbohydrates â are required for energy. 2  Glucose, which is a monosaccharide, is the most essential source of energy in the body. 3  The brain works entirely on glucose alone. 4  When an immediate source of energy is required, glucose is converted into glycogen which is stored in the liver.
Instead of making their own glucose, animals got it from the plants that they ate. Glucose is the source of energy for all of our body functions, especially the brain. The only energy the brain can use is from glucose. Glucose is also the primary source of energy for muscles, backed up by other sources if it runs out.Proteins, for example, are for building the tissues that use glucose.o, in order to keep glucose levels in the blood in a healthy range, a hormone called âinsulinâ is produced in a cell called the âBeta Cellâ in special areas of the pancreas. The relationship of glucose and insulin is very sensitive, like a really good thermostat.