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All monosaccharides exhibit optical acti...

All monosaccharides exhibit optical activity. Explain.

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All monosaccharides contain one or more chiral carbon atoms. Hence, they have the isomers which bear mirror-image object relationship and are nonsuperimposable. Thus, they exhibit optical activity.
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ICSE-BIOMOLECULES-EXERCISE (PART-II)(DESCRIPTIVE QUESTIONS)(VERY SHORT ANSWER QUESTIONS)
  1. What is the basic difference between starch and cellulose?

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  2. How many atoms constitute the pyranose ring of glucose?

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  3. All monosaccharides exhibit optical activity. Explain.

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  4. What are the products of the fermentation of glucose ?

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  5. What is the action of bromine water on (i) glucose (ii) fructose?

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  6. Why is glucose given to athletes under exhaustion ?

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  7. What are the functional groups that can be present in monosaccharides?

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  8. What happens when sucrose is boiled with dil. HCI.

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  9. Why do monosaccharides form cyclic structures?

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  10. Name a carbohydrate which on hydrolysis gives glucose and fructose.

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  11. What are reducing and non-reducing sugars ?

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  12. In what form and in which part is excess glucose stored?

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  13. What are anomers ?

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  14. Name two carbohydrates which act as biofuels.

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  15. What are the constituents of starch?

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  16. Why are carbohydrates generally optically active?

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  17. Mention two main functions of carbohydrates in plants.

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  18. What is the main structural feature characterising reducing sugars?

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  19. What is meant by oligosaccharides and polysaccharides?

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  20. What are the differences between homopolysaccharides and heteropolysac...

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