Define the following and give one example of each:
a) isoelectric point
b) mutarotation
c) enzymes
a) isoelectric point
b) mutarotation
c) enzymes
Solution
(a) \textbf{Isoelectric point}: the pH at which an amino acid carries no net charge (pure zwitterion) and does not move in an electric field — glycine's is ≈ 6.1.
(b) \textbf{Mutarotation}: the gradual change of a sugar solution's rotation to a constant value as α and β anomers equilibrate — α-D-glucose +112° → +52.5°.
(c) \textbf{Enzymes}: proteins acting as highly specific biocatalysts — maltase (maltose → glucose), pepsin.
(b) \textbf{Mutarotation}: the gradual change of a sugar solution's rotation to a constant value as α and β anomers equilibrate — α-D-glucose +112° → +52.5°.
(c) \textbf{Enzymes}: proteins acting as highly specific biocatalysts — maltase (maltose → glucose), pepsin.
CBSE Class 12 Board · Subjective