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What are reducing sugars ?...

What are reducing sugars ?

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Carbohydrates which reduces Fehling's solution to red precipitate of `Cu_(2)O` or Tollen's reagent to metallic Ag are called reducing sugars. All monosaccharides (both aldoses and ketoses) and disaccharides excepts sucrose are reducing sugars. Thus, `D - (+) -` glucose, `D-(-)-` fructose, `D - (+) -` maltose and `D - (+) -` lactose are reducing sugars.
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NCERT ENGLISH-BIOMOLECULES-Exercise
  1. When RNA is hydrolysed, there is no relationship among the quantities ...

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  2. What are monosaccharides?

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  3. What are reducing sugars ?

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  4. Write two main functions of carbohydrates in plants.

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  5. Classify the following into monosaccharides and disaccharides: Ribose,...

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  6. What do you understand by the term glycosidic linkage?

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  7. What is glycogen? How is it different from starch?

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  8. What are the hydrolysis products of (i) sucrose and (ii) lactose?

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  9. What is the basic structural difference between starch and cellulose?

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  10. What happenes when D-glucose is treated with the following reagents? ...

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  11. Enumerate the reactions of D-Glucose which cannot be explained by its ...

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  12. What are the essential and non-essential amino acids?Give two examples...

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  13. Define the following as related to proteins: (i) Peptide linkage (...

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  14. What are the common types of secondary structures for proteins?

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  15. What type of bonding helps in stabilising the a-helix structure of pro...

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  16. Differentiate between globular and fibrous proteins.

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  17. How do you explain the amphoteric behaviour of amino acids ?

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  18. What are enzymes ?

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  19. What is the effect of denaturation on the structure of proteins?

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  20. How are vitamines classified? Name the vitamin responsible for the coa...

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