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(i) Write the product obtained when D-gl...

(i) Write the product obtained when D-glucose reacts with `NH_(2)OH`.
(ii) `alpha`-Amino acids show amphoteric behaviour. Why ?
(iii) Why cannot vitamin C be stored in our body ?

Text Solution

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(i) The product is called glucose oxime.
`underset("D-glucose")(CH_(2)OH(CHOH)_(4)CHO)+NH_(2)OH rarr underset("Glucose oxime")(CH_(2)OH(CHOH)_(4)CH)=NOH+H_(2)O`
(ii) Because `alpha`-amino acids have zwitterion structure.
(iii) Vitamin C is water soluble and is excreated through urine. As a result, it cannot be stored in our body.
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DINESH PUBLICATION-BIOMOLECULES-QUESTIONS FROM BOARD EXAMINATIONS
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  2. Classify vitamins A,B,C and D depending upon their solubility in water...

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  3. How are carbohydrates classified ?

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  4. Write the names of two water soluble vitamins.

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  8. (i) Write the product obtained when D-glucose reacts with NH(2)OH. (...

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  9. (i) Which one of the following is a polysaccharide : Starch, Maltose, ...

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  10. (i) Write one reaction of D-Glucose which cannot be explained by its o...

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  11. (i) Write the namews of two monosaccharides obtained on hydrolyssi of ...

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  12. (i) Draw the pyranose structure of glucose (ii) What type of linkage...

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  13. What is the difference between alpha-glucose and beta-glucose ? Write ...

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  14. What are carbohydrates ? Given important functions of carbohydrates.

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  15. (i) Which vitamin deficiency causes rickets ? (ii) Name the base tha...

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  16. (a) What are alpha-amino acids ? How are they related to proteins ? ...

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  17. Name two vitamins and their deficiency diseases.

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  18. (a) Write the product when D-glucose reacts with conc. HNO(3). (b) A...

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  20. Deficiency of which vitamin causes scurvy ?

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