Q. Which of the following is not optically active ?

1854 196 AMUAMU 2010Biomolecules Report Error

A

Glycine

69%

B

Tyrosine

16%

C

Lysine

5%

D

Alanine

10%

Solution:

The structures of the given amino acids are as

$(C^{*}$ = asymmetric carbon atom)
Thus, glycine because of the absence of asymmetric carbon atom is optically inactive