what's the difference between glucose, fructose, and galactose? | Yahoo Answers
Mar 5, Glucose, galactose, and fructose are carbohydrates, and monosaccharides in particular. The isomers glucose, glactose, and fructose all have. When you eat French fries, potato chips, or a baked potato with all the fixings, made of carbon, hydrogen, and oxygen in a ratio of roughly one carbon atom (C \ text . Fructose is a structural isomer of glucose and galactose, meaning that its. Examples of these are glucose, fructose, and galactose. . All calories contribute to body weight, not just those from sugars. In the US, professional groups such as the American Diabetes Association, the Academy of Nutrition and Dietetics.
What Is the Difference Between Sucrose, Glucose & Fructose?
It is the basic structure to which all carbohydrates are reduced to in the end, for transport via the bloodstream and use by the cells of the body. Two different pathways are involved in the metabolism of glucose: The anaerobic process occurs in the cytoplasm and is only moderately efficient. The aerobic cycle takes place in the mitochondria and results in the greatest release of energy.
As the name implies, though, it requires oxygen. Galactose Galactose is not normally found in nature, but is mostly hydrolyzed from the disaccharide lactose, which is found in milk, as part of a disaccharide made by glycosidic linkage to a glucose molecule. The lactose disaccharide from milk is a major energy source for almost all animals, including human. Although not very water-soluble, and less sweet than glucose, it forms part of glycolipids and glycoproteins, which is found in many tissues.
The body can change glucose to galactose in order to enable the mammary glands to produce lactose. Galactose is natural and is a basic component of many things, being found in milk, tomatoes and many fruits and vegetables.
Maltose is founds in cereals containing barley and 'malt products' such as malted milkshakes, lollies and beer.
What are the isomers in relation to glucose, galactose, and fructose?
Now we know the different types of sugars -- is one sugar better or worse for us? From that perspective, other than a slight benefit from lactose, all the sugars are going to cause dental caries and will generally provide the same amount of kilojoules per gram. While different sugars have a slightly different effect in the body, there's no one 'hero' sugar. Whereas fructose will have the least effect on glucose and insulin, but it will raise triglyceride levels.
Nobody consumes pure fructose.
This means that pitting one sugar against the other is not the right mentality to have towards sugar. Instead, see added sugar that is, not whole fruit as a 'sometimes' food.
Carbohydrates (article) | Macromolecules | Khan Academy
There's no need to avoid all sugars. The WHO guidelines make that quite clear," Barclay said. They all provide the same amount of energy per gram, but are processed and used differently throughout the body.
Chemical Structure Simple carbohydrates are classified as either monosaccharides or disaccharides. Monosaccharides are the simplest, most basic units of carbohydrates and are made up of only one sugar unit.
Monosaccharides Glucose Fructose Galactose
Glucose and fructose are monosaccharides and are the building blocks of sucrose, a disaccharide. Thus, disaccharides are just a pair of linked sugar molecules. They are formed when two monosaccharides are joined together and a molecule of water is removed -- a dehydration reaction. Glucose is also called blood sugar, as it circulates in the blood, and relies on the enzymes glucokinase or hexokinase to initiate metabolism.
Your body processes most carbohydrates you eat into glucose, either to be used immediately for energy or to be stored in muscle cells or the liver as glycogen for later use.