Amino Acids and Optical Activity Quiz

Theronine

Glycine (correct)

Valine

Alanine

$H_2N-CH(CH_3)-C-OH$ (correct)

$H_2N-CH(C_2H_5)-C-OH$

$H_2N-CH(CH_2OH)-C-OH$

$H_2N-CH(CH_3)-C(NH_2)-OH$

Glycine is the only optically active amino acid.

Optical activity depends on the presence of a hydroxyl group.

Optically active amino acids can rotate polarized light to the right or left. (correct)

All amino acids are optically inactive.

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