The correct statement in respect of protein haemoglobin is that it

Options

A. functions as a catalyst for biological reactions
B. maintains blood sugar level
C. acts as an oxygen carrier in the blood
D. forms antibodies not offers resistance to disease

Answer

C

Explanation

Haemoglobin acts as oxygen carrier in the blood because four `Fe^(2+)` ions of each haemoglobin can bid with four molecule of `O_(2)` and form oxyhaemoglobin.
`4Hb +4O_(2) to underset("Oxy-haemoglobin")(Hb_(4)O_(8))`