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Name the sugar present in milk. How many...

Name the sugar present in milk. How many monosaccharide units are present in it? What are such oligosaccharides called?

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The sugar present in milk is known as lactose. Two monosaccharide units are present in lactose. These are `beta-D` glucose and `beta-D` galactose. Both have pyranose ring structures. Lactose is an oligosaccharide called disaccharide.
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DINESH PUBLICATION-BIOMOLECULES-SHORT ANSWER TYPE QUESTIONS
  1. Name the sugar present in milk. How many monosaccharide units are pres...

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  2. How do you explain the presence of all the six carbon atoms in glucose...

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  3. In nucleoside, a base is attached at 1' position of sugar moiety. Nucl...

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  4. Name the linkage connecting monosaccharide units in polysaccharides.

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  5. Under what conditions glucose is converted to gluconic acid and saccha...

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  6. Monosaccharides contain carbonyl group hence are classified, as aldose...

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  7. Letters 'D' or 'L' before the name of a stereoisomer of a compound ind...

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  8. Aldopentoses named as ribose and 2-deoxyribose are found in nucleic ac...

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  9. Which sugar is called invert sugar? Why is it called so?

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  10. Amino acids can be classified as alpha-,beta-,gamma-,delta-and so depe...

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  11. alpha-helix is a secondary structure of proteins formed by twisting of...

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  12. Some enzymes are named after the reaction, where they are used. What n...

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  13. During curdling of milk, what happens to sugar present in it?

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  14. How do you explain the presence of five -OH groups in glucose molecule...

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  15. Why does compound (A) not form an oxime ?

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  16. Why must vitamin C be supplied regularly in diet?

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  17. Sucrose is dextrorotatory but the mixture obtained after hydrolysis is...

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  18. Amino acids behave like salts rather than simple amines or carboxylic ...

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  19. Show the presence of prptide linkage in the structures of glycine and ...

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  20. Protein found in a biological system with a unique three-dimensional s...

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