PYQ NEET- Breathing And Exchange Of Gases 2 L-3

Question: What is true about RBCs in humans? (NEET 2010)#

A) They carry about 20-25 per cent of CO2

B) They transport 99.5 per cent of 02

C) They transport about 80 per cent oxygen only and the rest 20 per cent of it is transported in dissolved state in blood plasma

D) They do not carry CO, at all

Answer: They carry about 20-25 per cent of CO2#