: The most abundant sugar in nature and the main fuel for cellular respiration.
A is a simple sugar (monosaccharide) containing six carbon atoms, with the general chemical formula hexose
: Found in dairy products; it must be converted to glucose in the liver to be metabolized. Ketohexoses : Contain a ketone group ( ), typically at the second carbon position. : The most abundant sugar in nature and
: Commonly found in fruits and honey; it is sweeter than glucose and follows a different metabolic pathway in the liver. 2. Structural Features Hexoses can shift between two main structural forms: hexose