9
Question
The amino acid which is not optically active is:
The amino acid which is not optically active is:
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Solution
The correct option is D glycine
Glycine is the only amino acid that is not optically active because it
does not have a carbon chiral center. In order for a carbon to to be a
chiral center, it must have 4 different R-groups attached to it. Gylcine
has only three different R groups on it (an amine group, a carboxyl
group, and two H's), which means it does not have a chiral center, and
is also not optically active.
Glycine is the only amino acid that is not optically active because it does not have a carbon chiral center. In order for a carbon to to be a chiral center, it must have 4 different R-groups attached to it. Gylcine has only three different R groups on it (an amine group, a carboxyl group, and two H's), which means it does not have a chiral center, and is also not optically active.
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