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What is the basic structural difference ...

What is the basic structural difference between starch and cellulose?

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Starch consists of amylose and amylopectin. Amylose is a linear polymer of `alpha-D-`glucose, `C-1` of one glucose unit is connected to `C-4` of the other through `alpha`-glycosidic linkage. However, in cellulose, `C-1` of one glucose unit is connected to `C-4` of the other through `beta-`glycosidic linkage (see Section 17.320). Amylopectin, on the other hand, has a highly branched structure.
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CENGAGE CHEMISTRY ENGLISH-BIOMOLECULES-Exercises (Concept Application)
  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 happedn when D-glucose is treated with the following reagents : ...

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  5. Write such reactions and facts about glucose which cannot be explaine...

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  6. What are essential and non-essential amino acids? Give two examples of...

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

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

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

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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 to 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 a nucleotide?

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  18. The two strands in DNA are not identical but are complementary. Explai...

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  19. DIFFERENCE BETWEEN DNA & RNA

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

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