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What is chitin ?


Chitin is a complex polysaccharide which has a branched, linear chain formed by nitrogen containing monosaccharide N-acetyl glucosamine. It is a homoplymer. It forms the exoskeletons of arthropods and cell wall of bacteria and fungi.

 

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Give the names of three types of DNA.

ZDNA, BDNA, ADNA are the different types of DNA.
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What type of protein is present in wheat?

Gluteline is the storage protein in wheat.
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What are the advantages of storing carbohydrates in the form of polysaccharides?

The advantages of carbohydrates in the form of polysaccharide are

(1) Polysaccharides are less bulky than monosaccharides as these are formed by dehydration synthesis (removal of water).

(2) These are easy to store; because they are insoluble in water, therefore, osmotically inactive.

(3) These can easily be broken down by enzymes for release of energy.

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What are the purines of DNA strands?

Adenine and guanine are substituted purines.
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