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Enumerate the reactions of D-Glucose whi...

Enumerate the reactions of `D`-Glucose which cannot be explained by its open-chain structure.

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Open chain structure of D-glucose contains a free aldehydic group (-CHO). However, it does not give the following reactions :
(i) D(+) glucose does not react with 2, 4 D.N.P.
(ii) D(+) glucose does not react with `NaHSO_(3)`.
(iii) D(+) glucosaes does not restore the pink colour to Schiff's reagent.
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DINESH PUBLICATION-BIOMOLECULES-N.C.E.R.T. EXERCISE
  1. What is glycogen? How is it different from starch?

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

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

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

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

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  6. What are essential and non-essential amino acids ?

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  7. Defines the following as related to proteins: (i)Peptide linkage,(ii...

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  8. What are the common types of secondary structures fo proteins?

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  9. What types of bonding helps in stabilising the alpha-helix structure o...

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  10. Differentiate between globular and fibrous proteins.

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

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  12. What are enzymes ?

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

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  14. How are vitamins classified? Name the vitamin responsible for the coag...

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  15. Why are vitamin A and vitamin C essential for us? Give their important...

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  16. What are nucleic acids ? Mention their two important functions.

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  17. What is the difference between a nucleoside and nucleotide ?

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  18. The two strands of DNA are not identical, but are complementary'. Expl...

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  19. Write the important structral and functional differences between DNA a...

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  20. What are the different types of RNA found in the cell?

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