Biomolecules

Amylose is polysaccharide made of a-D-glucose unit of linear chain polymer not branched

Enzymes are the form of proteins and highly specific regarding temperature and pH change. It also lowers the activation energy for biochemical reaction.

Electronic configuration of Fe is [Ar] 4s²3d⁶ and in +3 oxidation state it has [Ar] 4s⁰3d⁵ configuration.

Lactose is polymer contain glycosidic linkage between C₁ of b-galactose & C₄ of b-glucose.

This is isomeric form of Uracil, which is present in RNA

Biuret test is given by proteins and dipeptide & compounds having following groups

Hence positive test given by tripeptide & biuret.

$?$ 0.30 gm glycine is present in 100 gm protein

$\therefore$ 75 gm glycine is present in $\frac{100}{0.30}*75=\frac{1000\cancel{0}}{3\cancel{0}}*75=25*10^{3}g/mol$

Molecular structure of tetrapeptide Gly-Glu-Asp-Tyr is;

Total negative charge developed at pH 12.5 = 4

Ans. = 4