For the metalloprotein hemerythrin, the statement that NOT TRUE is
(a)there are two ion centres per active site.
(b)both iron centres are hexacoordinated in the active state.
(c)one iron is hexacoordinated while the other is pentacoordinated in the active state.
(d)it is found in marine invertebrates.
Answer
Answer: B ✓ checked by 4AB · confidence high
Explanation
In hemerythrin one iron is six-coordinate and the other five-coordinate (the open site binds O₂ as hydroperoxide), so 'both hexacoordinated' is the false statement.