Podcast
Questions and Answers
Which type of bond is formed when the hydroxyl group of anomeric carbon of a monosaccharide reacts with OH or NH group of a second compound?
Which type of bond is formed when the hydroxyl group of anomeric carbon of a monosaccharide reacts with OH or NH group of a second compound?
Which drug contains glycosides and is used as an antibiotic?
Which drug contains glycosides and is used as an antibiotic?
Which disaccharide is known as cane sugar and table sugar?
Which disaccharide is known as cane sugar and table sugar?
Which disaccharide is a reducing sugar due to the availability of the anomeric carbon of the glucose unit for oxidation?
Which disaccharide is a reducing sugar due to the availability of the anomeric carbon of the glucose unit for oxidation?
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In which compound is the anomeric carbon of both glucose and fructose involved in the glycosidic bond, making it a non-reducing sugar?
In which compound is the anomeric carbon of both glucose and fructose involved in the glycosidic bond, making it a non-reducing sugar?
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Which disaccharide is present in milk and contains glucose and galactose?
Which disaccharide is present in milk and contains glucose and galactose?
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What monosaccharides are produced from the hydrolysis of the disaccharide sucrose?
What monosaccharides are produced from the hydrolysis of the disaccharide sucrose?
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What monosaccharides are produced from the hydrolysis of the disaccharide maltose?
What monosaccharides are produced from the hydrolysis of the disaccharide maltose?
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What monosaccharides are produced from the hydrolysis of the disaccharide lactose?
What monosaccharides are produced from the hydrolysis of the disaccharide lactose?
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What monosaccharides are produced from the hydrolysis of the disaccharide cellobiose?
What monosaccharides are produced from the hydrolysis of the disaccharide cellobiose?
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Why is lactose classified as a reducing sugar?
Why is lactose classified as a reducing sugar?
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Why is sucrose not classified as a reducing sugar?
Why is sucrose not classified as a reducing sugar?
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Why can cellulose not be digested and absorbed in the human body unlike starch?
Why can cellulose not be digested and absorbed in the human body unlike starch?
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Which of the following is a correct characterization for the amylose form of starch?
Which of the following is a correct characterization for the amylose form of starch?
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Why is glycogen considered the major storage form of carbohydrate (glucose) in animals?
Why is glycogen considered the major storage form of carbohydrate (glucose) in animals?
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Which carbohydrate is an unbranched heteropolysaccharide made up of repeating disaccharides?
Which carbohydrate is an unbranched heteropolysaccharide made up of repeating disaccharides?
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Study Notes
Types of Bonds and Glycosides
- A glycosidic bond is formed when the hydroxyl group of the anomeric carbon of a monosaccharide reacts with an OH or NH group of a second compound.
Antibiotics and Disaccharides
- Streptomycin, an antibiotic, contains glycosides.
- Sucrose is known as cane sugar and table sugar.
- Lactose, a reducing sugar, contains glucose and galactose and is present in milk.
Disaccharides and Hydrolysis
- Sucrose hydrolysis produces glucose and fructose.
- Maltose hydrolysis produces two glucose molecules.
- Lactose hydrolysis produces glucose and galactose.
- Cellobiose hydrolysis produces two glucose molecules.
Reducing Sugars
- Lactose is classified as a reducing sugar because the anomeric carbon of glucose is available for oxidation.
- Sucrose is not a reducing sugar because the anomeric carbons of both glucose and fructose are involved in the glycosidic bond.
Polysaccharides
- Cellulose cannot be digested and absorbed in the human body unlike starch because it has a β-1,4 glycosidic bond, which is difficult to break down.
- Amylose, a form of starch, is a helical-shaped polysaccharide made up of α-1,4 glycosidic bonds.
- Glycogen is the major storage form of carbohydrate (glucose) in animals because it is a branched polysaccharide that can be easily broken down to glucose molecules.
- Chitin is an unbranched heteropolysaccharide made up of repeating disaccharides.
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Description
Test your knowledge on the formation of glycosides, which are formed when the hydroxyl group of an anomeric carbon of a monosaccharide reacts with OH or NH group of a second compound. Explore how monosaccharides are joined by glycosidic bonds to form disaccharides, oligosaccharides, and polysaccharides, and their presence in drugs like streptomycin and cardiac glycosides.
