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  • Explain the following : (i) Amino acids behave like salts rather than simple amines or carboxylic acids. (ii) The two strands of DNA are complementary to each other. (iii) Reaction of glucose that indicates that the carbonyl group

Explain the following :
(i) Amino acids behave like salts rather than simple amines or carboxylic acids.
(ii) The two strands of DNA are complementary to each other.
(iii) Reaction of glucose that indicates that the carbonyl group is present as an
aldehydic group in the open structure of glucose.

 

 

 

 
 
 
 
 

Answers (1)

(i)    Amino acids behave like salts rather than simple amines or carboxylic acids due to the presence of both acidic (-COOH) and basic (-NH2) groups. In solution, -COOH group can lose a proton and an amine group can accept a proton, giving rise to a dipolar ion called zwitter ion.

(ii)    Two strands of DNA are complementary to each other because adenine forms H-binds with thymine and cytosine forms h-bond with guanine, due to unique specificity of base pairing the sequence of the basis on one strand automatically determines that of other.

(iii)    Reaction that indicates the presence of the aldehydic group in the open structure of glucose-

        

Posted by

Sumit Saini

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