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 Multiple Choice QuestionsShort Answer Type

241.

Mention two structural differences between amylose and amylopectin.

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242. What are enzymes? Discuss their functions? 
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243.

How does DNA differ from RNA with respect to (a) Sugar and (b) base residues?


Deoxyribonucleic acid (DNA) and ribonucleic acid
(RNA).In DNA molecules, the sugar moiety is β-D-2-deoxyribose whereas, in RNA molecule, it is β-D-ribose.

DNA contains four bases viz. adenine (A), guanine (G), cytosine (C) and thymine (T). RNA also contains four bases, the first three bases are same as in DNA but the fourth one is uracil (U).

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244.

What are the different types of RNA found in the cells of organisms? What are their functions?

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245.

How would you convert fructose into glucose?

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246.

What are vitamins? Classify them into water soluble and insoluble vitamins.

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247.

Explain mutarotation. Give its mechanism in case of D-glucose.

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248.

Explain the following:
Denaturation of proteins.  

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249.

Which one of the following is a disaccharide: Starch, Maltose, Fructose, Glucose ?

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250.

What is the difference between fibrous protein and globular protein?

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