Question

Mark the wrong statement

• A. Zinc is a cofactor for proteolytic enzyme carboxypeptidase
• B. $K_m$ (Michaelis Constant) is numerically equivalent to 1/2 Vmax
• C. Strands of DNA appear like a helical staircase. At each step of ascent, strand turns ${36}^o$.
• D. Tyrosine, Phenylalanine and Tryptophan are aromatic amino acids.

Answer 1

Answer: (A)

Zinc is a cofactor for proteolytic enzyme carboxypeptidase

A) Carboxypeptidase is a protease enzyme. It is secreted by the pancreas. This enzyme hydrolyzes the peptide bond present in the proteins. To enhance the rate of reactions, Zn act as a cofactor for carboxypeptidase.

B) Kmis the concentration of the substrate, which permits the enzyme to achieve the half Vmax. K_m (Michaelis Constant) is numerically equivalent to 1/2 V_max.

_{C) Strands of DNA appear like a helical staircase. At each step of ascent, strands turn ${36}^o$}

_{D) Tyrosine, Phenylalanine, and tryptophan are aromatic amino acids.}

_{So, all the statements are correct.}