Haemoglobin is a complex of

Options

(a) Cu⁺
(b) Cu²⁺
(c) Fe³⁺
(d) Fe²⁺

Correct Answer:

Fe²⁺

Explanation:

Haemoglobin is a complex of Fe²⁺. The prosthetic group of Haemoglobin is heme. Heme contains iron bound to the pyrrole system known as porphyrin. It is the formation of a reversible oxygenheme complex that enables haemoglobin to carry oxygen from the lungs to the tissues.