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Write the repeating unit in polypeptides...

Write the repeating unit in polypeptides. Write the structure of glycylglycine and mark the peptide linkage in it.

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ICSE-BIOMOLECULES-EXERCISE (PART-II)(DESCRIPTIVE QUESTIONS)(LONG ANSWER QUESTIONS)
  1. Name two facts in support of zwitterion structure ofa-amino acids.

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  2. What is the basic difference between starch and cellulose?

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  3. What are proteins? Name the products obtained during their hydrolysis....

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  4. Write the repeating unit in polypeptides. Write the structure of glycy...

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  5. What are enzymes ?

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  6. Write the names of enzymes whose deficiency causes albinism and phenyl...

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  7. Differentiate between : (a) DNA and RNA (b) Ribose and deoxyribo...

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  8. What are vitamins ? List at least four vitamins. Describe their functi...

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  9. Which forces are responsible for the stability of alpha -helix ? Why i...

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  10. What are the products obtained on complete hydrolysis of DNA ? Write d...

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  11. Alkaline KMnO4 oxidises lactic acid to give:

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  12. Draw the furanose ring structure of alpha -D- fructose

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  13. What are essential and non-essential amino acids ? Give two examples o...

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  14. Differentiate between reducing and non-reducing sugars.

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  15. Write the chemical reactions of glucose with (i) NH2OH (ii) (CH3CO)...

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  16. Name the food sources and the deficiency diseases caused due to lack o...

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  17. State the composition and functional diffrences between DNA and RNA. D...

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  18. Mention two differences between amylopectin and cellulose.

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  19. Define the following terms: (i) Coenzymes (ii) Nucleotides (iii...

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  20. Name different types of RNA found in the cell. State one function of e...

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