Question

Which is not true statement? (a) α-carbon of α-amino acid is asymmetric.

Answer 1

All proteins are found in L-form.

Explanation :

Some proteins are also found in the D-form.

The simplest amino acid, which is the molecule glycine, H2NCH2COOH, contains no asymmetric carbon atoms (tetrahedral carbon atoms with four different groups attached). All of the other amino acids do contain such a carbon atom and are therefore optically active.