91Ó°ÊÓ

Assertion: Starch with \(\mathrm{I}_{2}\) gives blue colour because of starch \(\mathrm{I}_{2}\) complex. Reason: Starch Can hold \(\mathrm{I}_{2}\) in their helical portion

Assertion: Cellulose doesn'\operatorname{tg} i v e ~ c o l o u r ~ w i t h ~ \(\mathrm{I}_{2}\) Reason: Cellulose doesn't contain helix which can hold \(\mathrm{I}_{2}\)

Assertion: In polysaccharide chain the right end is reducing Reason: The right end contain free anomeric -OH group.

Assertion: Chitin is homopolymer. Reason: Chitin is made up of only one type of monomer i.e. N-acetylglucosamine.

Assertion: The first amino acid in primary structure protein is called as N-terminal amino acid. Reason: \(\mathrm{NH}_{2}\) group of first amino acid is free, not bound to form peptide bond.

Assertion: Oil containing PUFA are good for health. Reason: They reduce blood cholesterol level. Thus, decreases chance of heart diseases.

Assertion: A B-DNA structure proposed by Watson and Crick is secondary structure. Reason: B- DNA contains hydrogen bond in addition to covalent bond.

Assertion: Conversion of glucose to lactic acid in our skeletal muscle is catabolic pathways. Reason: In this metabolic pathway complex structure is degraded to simpler one.

Assertion: Enzymes isolated from thermophilic organisms are thermally stable. Reason: They retain their catalytic power even at higher temperature.

Assertion: Enzyme increases the rate of biochemical reactions. Reason: Enzymes lower down the energy of activation.