Q27 · Practice questionSimple familiar1 mark
QUESTION 27
An amino acid with isoelectric point 6.0 undergoes electrophoresis at pH 3.0. Its net charge and direction of migration are
(A)
positive; towards the cathode.
(B)
positive; towards the anode.
(C)
negative; towards the cathode.
(D)
negative; towards the anode.
WORKED SOLUTION
1 markAnswer A
A
Below its isoelectric point the amino acid has a net positive charge and moves towards the negative electrode.
- Select A. [1 marks]
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