question_answer

The correct statement in respect of protein hemoglobin is that it:             [AIPMT (S) 2004]

A) functions as a catalyst for biological reactions

B) maintains blood sugar level

C) act as an oxygen carrier in the blood

D) forms antibodies and offers resistance to diseases

Correct Answer: C

Solution :

[c] Haemoglobin acts as oxygen carrier in the blood because four  ions of eachhaemoglobin can bind with four molecules of and form oxyhaemoglobin.