Question

In mammalian RBC, the percentage of haemoglobin is

• A. 40% of biomass
• B. 34% of biomass
• C. 90% of biomass
• D. 50% of biomass

Answer 1

Answer: (B)

34% of biomass

In mammals, the protein makes up about 96% of the red blood cells' dry content (by weight), and around 35% of the total content (including water). Hemoglobin has an oxygen-binding capacity of 1.34 mL O2 per gram, which increases the total blood oxygen capacity seventy-fold compared to dissolved oxygen in blood.

So, the correct option is '34% of biomass'.