Glucose. Computer graphic of a molecule of the glucopyranose form of D-glucose,also known as dextrose or grape sugar,the principal fuel that cells use to power themselves. D-glucose is comprised of atoms of carbon (C,blue),hydrogen (H,white) and oxygen (O,red),and has the chemical formula C6H12O6. It can have many forms,the glucopyranose type featuring a ring of 5 carbons and 1 oxygen. Glucose is found in many plants and is a normal component of blood. It is a constituent of starch,cellulose,glycogen,sucrose and many glycosides from all of which it can be obtained by hydrolysis with acids or enzymes |