BIOMOLECULES AND ENZYMES

Detailed explanation-1: -The 2-aminopropanoic acid will exist in optically active form as it contains an asymmetric C atom which is a C atom to which 4 different atoms or groups are attached.

Detailed explanation-2: -2-aminopropanoic acid (alanine) has two enantiomers (optical isomers) because it has a chiral molecule containing an asymmetric carbon atom. One enantiomer is a non-superimposable mirror image of the other.

Detailed explanation-3: -2-hydroxypropanoic acid has a central carbon atom, which is linked to four different groups. This carbon atom is called chiral carbon atom and the molecule is called chiral molecule. Hence, 2-hydroxypropanoic acid shows optical isomerism.

Detailed explanation-4: -A chiral molecule that rotates light is said to be optically active. If the molecule rotates the plane-polarized light in the clockwise direction, we call that rotation a dextrorotatory rotation. However, if the light rotates counterclockwise, we call that rotation levorotatory.