Question

Which is true regarding heme? which is true regarding heme? the binding of an oxygen molecule to the iron in a heme unit is completely reversible. each heme unit holds an iron ion in such a way that the iron can interact with a hydrogen molecule. like myoglobin, each hb chain contains four molecules of heme. heme is a complex of protein pigments?

Answer 1

The correct answer would be.

The binding of an oxygen molecule to the iron in a heme unit is completely reversible.