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Assertion: all monosaccharides are reduc...

Assertion: all monosaccharides are reducing sugar
Reason : monosaccharides contain free aldehyde or free ketonic group

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Assertion: all monosaccharides are reducing sugar Reason : monosaccharides contain free aldehyde or fre ketonic group

Assertion : all monosaccharides give benedict's test Reason : all monosacchaide contain free aldehyde or ketonic group

If monosaccharide contains an aldehyde group it is known As

The two monosaccharides are joined together by an oxide linkage formed by the loss of a water molecule. Such a linkage between two monosaccharide units through oxygen atom is called glycosidic linkage. In disaccharides, if the reducing groups of monosaccharides i.e., aldehydic or ketonic groups are bonded, these are non-reducing sugars, e.g., sucrose. On the other hand, sugars in which these functional groups are free, are called reducing sugars, for example, maltose and lactose. A non reducing disaccharide 'A on hydrolysis with dilute acid gives an equimolar mixture of D-(+)glucose and D-(+)-Fructose. In the above reaction, reactant 'A' is:

The two monosaccharides are joined together by an oxide linkage formed by the loss of a water molecule. Such a linkage between two monosaccharide units through oxygen atom is called glycosidic linkage. In disaccharides, if the reducing groups of monosaccharides i.e., aldehydic or ketonic groups are bonded, these are non-reducing sugars, e.g., sucrose. On the other hand, sugars in which these functional groups are free, are called reducing sugars, for example, maltose and lactose. A non reducing disaccharide 'A on hydrolysis with dilute acid gives an equimolar mixture of D-(+)glucose and D-(+)-Fructose. Glucose on reaction with acetic acid gives glucose pentaacetate. What does it suggest about the structure of glucose ?

The two monosaccharides are joined together by an oxide linkage formed by the loss of a water molecule. Such a linkage between two monosaccharide units through oxygen atom is called glycosidic linkage. In disaccharides, if the reducing groups of monosaccharides i.e., aldehydic or ketonic groups are bonded, these are non-reducing sugars, e.g., sucrose. On the other hand, sugars in which these functional groups are free, are called reducing sugars, for example, maltose and lactose. A non reducing disaccharide 'A on hydrolysis with dilute acid gives an equimolar mixture of D-(+)glucose and D-(+)-Fructose. What is the mixture of D-(+) glucose and D-(+) fructose known as ?

The two monosaccharides are joined together by an oxide linkage formed by the loss of a water molecule. Such a linkage between two monosaccharide units through oxygen atom is called glycosidic linkage. In disaccharides, if the reducing groups of monosaccharides i.e., aldehydic or ketonic groups are bonded, these are non-reducing sugars, e.g., sucrose. On the other hand, sugars in which these functional groups are free, are called reducing sugars, for example, maltose and lactose. A non reducing disaccharide 'A on hydrolysis with dilute acid gives an equimolar mixture of D-(+)glucose and D-(+)-Fructose. Name the linkage that holds the two units in the disaccharide?

Carbohydrates play a vital role in our daily life. These are classified as monosacchrides, oligosaccharides and polysaccharides depending upon the number of smaller molecules on hydrolysis. It has been suggested that monosaccharides do not have a free aldehyde or ketonic group but have cyclic hemiacetal or hemiketal structures. D - Glucose exists in two isomeric stereoisomeric forms : alpha-D- glucose and beta-D glucose which have different positions of H and OH groups on first carbon atom. Disaccharides such as sucuose, maltose, lactose, etc., give monosaccharides on hydrolysis. Polysaccharides are starch, cellulose, glycogen, having molecular formula (C_(6)H_(10)O_(5))_(n) . Name the water insoluble component of starch.

MOTION-BIOMOLECULES-EXERCISE - 4
  1. Assertion : cellulose is a homopolymer while chitin is a heteroploymer...

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  2. Assertion :- Together with polysaccharides and polypeptides nucleic ac...

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  3. Assertion : primary sturcture of protein is the positonal information ...

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  4. Assertion : Last amino acid of any proteins is known as c terminal ami...

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  5. Assertion: Tertiary structure is absolutely necessary for the many bi...

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  6. Assertion : Metal ions are important for functioning of cells Reason...

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  7. Assertion : Saturated fatty acids are non -essential fatty acids ...

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  8. Assertion: maltose is reducing sugar Reason : In maltose 1-2 glycosi...

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  9. Assertion : Glucose is commonest sugar which provides energy on hydrol...

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  10. Assertion: all monosaccharides are reducing sugar Reason : monosacch...

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  11. Assertion: sucrose is called invert sugar Reason : sucrose is initia...

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  12. Assertion: In the oxidation of monosaccharide first step is always pho...

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  13. Assertion : cholesterol is an important biochemical Reason : cholest...

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  14. Assertion : sucrose is known as invert sugar Reason : sucrose is a di...

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  15. Assertion : Phospholipids form bimolecular layer in aqueous med...

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  16. Assertion : all monosaccharides give benedict's test Reason : all m...

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  17. Assertion : phospholipid is amphipathic molecule Reason : phospholi...

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  18. Assertion : beta- pleated sheet structure of protein shows maximum ext...

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  19. Assertion : Fructose is a reducing sugar. Reason : It has a ketonic...

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  20. Assertion : All enzymes are made up of proteins and all proteins have ...

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