What are glucose, fructose and galactose?
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What are glucose, fructose and galactose?
Glucose, fructose and galactose are the three monosaccharides important in nutrition. These single sugar molecules contain 6 carbon atoms, 12 hydrogen atoms and 6 oxygen atoms (i.e. chemical formula as C6H12O6).
What is the relationship between glucose, fructose and galactose quizlet?
fructose is absorbed by facilitated diffusion and glucose and galactose are absorbed by active transport. What happens to fructose and galactose once it enters the bloodstream? they are converted into glucose or used for energy.
What is common property of glucose, galactose and fructose quizlet?
Terms in this set (3) The carbohydrates glucose, galactose, and fructose have the same chemical formula (C6H12O6) but different structural formulas, as represented in the figure.
Are glucose, fructose and galactose monosaccharides?
Each of the three common monosaccharides is hexoses, containing 6 carbon, 12 hydrogen, and 6 oxygen molecules in slightly varied configurations. The three most common monosaccharides are glucose, fructose, and galactose.
Are Glucose galactose and fructose isomers?
Fructose is a structural isomer of glucose and galactose, meaning that its atoms are actually bonded together in a different order. Glucose and galactose are stereoisomers (have atoms bonded together in the same order, but differently arranged in space). They differ in their stereochemistry at carbon 4.
What is carbohydrates quizlet?
Carbohydrate. any of a large group of organic compounds occurring in foods and living tissues and including sugars, starch, and cellulose. Monosaccharide. any class of sugars that cannot be hydrolyzed to give a simpler sugar.
How are disaccharides formed quizlet?
Formation Disaccharides are formed when two monosaccharides join together by the dehydration synthesis reaction resulting in a glycosidic bond between the two monosaccharide molecules.
What is the common property of glucose, galactose and fructose Labster?
Although glucose, galactose and fructose all have the same chemical formula (C6H12O6), they differ structurally and chemically (and are known as isomers because of the different arrangement of functional groups around the asymmetric carbon; all of these monosaccharides have more than one asymmetric carbon.
What are monosaccharides made of quizlet?
A monosaccharide is a monomer of carbohydrates. In living things, 2 monosaccharides can combine in a condensation reaction to form a double sugar, or disaccharide. A polysaccharide is a complex molecule composed of 3+ monosaccharides.
What are monosaccharides disaccharides and polysaccharides?
A monosaccharide is a single sugar molecule. This includes glucose, fructose, and galactose. Disaccharides are double sugars, such as sucrose (table sugar). Polysaccharides are long chains, such as plant and animal starches.
What are the monosaccharides and disaccharides?
Monosaccharides are comprised of a single simple sugar unit, glucose, fructose, or galactose, and they cannot be broken down into simple sugar units. These three monosaccharides are combined in various ways to make more complex carbohydrates. Disaccharides are comprised of two monosaccharides bonded together.
What is anomers and epimers?
An epimer is one of two stereoisomers that differ in configuration at only one stereocenter. An anomer is a type of epimer; it is one of two stereoisomers of a cyclic sugar that differs only in its configuration at the hemiacetal or acetal carbon (the anomeric carbon).
Are glucose and fructose epimers?
Glucose and fructose are not epimers.
Are glucose and fructose enantiomers?
“D- and L-glucose are enantiomers, nonsuperposable mirror-image stereoisomers. Similarly, D- and L-fructose are enantiomers.” If two sugars have every horizontal OH and H pair switched, they are enantiomers.
Are galactose and fructose isomers?
Which is a monosaccharide quizlet?
Monosaccharide is one sugar unit (hexose sugar) and examples are : glucose, fructose, galactose, ribose, and deoxyribose. They are called simple sugars, including glucose, fructose, and galactose. They are mostly compared upon glucose.
When glucose and galactose are chemically combined what is formed?
Lactose is a disaccharide consisting of glucose and galactose and is found naturally in milk. Many people can’t digest lactose as adults, resulting in lactose intolerance (which you or your friends may be all too familiar with). Maltose, or malt sugar, is a disaccharide made up of two glucose molecules.
What are polysaccharides quizlet?
Polysaccharides are polymers of monosaccharaides linked together by dehydration reactions. they are long chains of sugar units that may function as storage molecules or as structural compounds.
Do glucose, galactose and fructose have the same properties?
Although glucose, galactose, and fructose all have the same chemical formula (C6H12O6), they differ structurally and chemically (and are known as isomers) because of the different arrangement of functional groups around the asymmetric carbon; all of these monosaccharides have more than one asymmetric carbon (Figure3.2.