Bio-Chemistry (M.Phil./Ph.D.) 2019 Panjab University Entrance Exam With Answers
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18.
Enzyme X exhibits maximum activity at pH=6.9. X shows a fairly sharp decrease in its activity when the pH goes much lower than 6.4. One likely interpretation of this pH activity is that:
A:
A Glu residue on the enzyme is involved in the reaction
B:
A His residue on the enzyme is involved in the reaction