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  2. Differentiate between the following: (i) Amylose and Amylopectin (ii) Peptide linkage and Glycosidic linkage (iii) Fibrous proteins and Globular proteins    
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Differentiate between the following:

(i) Amylose and Amylopectin

(ii) Peptide linkage and Glycosidic linkage

(iii) Fibrous proteins and Globular proteins

 

 

 

 
 
 
 
 

Answers (1)
S Sumit

(i) Amylose consists of 200 -1000 D - glucopyramose units connected in \alpha - linkage between C1 of one unit and C4 of the next water insoluble amylopectin has similar structure to that of amylose except that the chains are branched.

(ii) The bond connecting the amino acids in a protein is commonly called a peptide linkage or peptide bond. It is an amide bond formed between -COOH and -NH_{2}.

(iii) 

Fibrous proteins Globular proteins
(i) Consists of linear thread like molecules which tend to lie side by side to form fiber like structure. (i) Polypeptide chain is folded, around itself forming almost spheroidal shape.
(ii) Insoluble in water. (ii) Soluble in water.
(iii) eg. Keratin in hair (iii) eg. Albumin in eggs, insulin.

 

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