1.

Question : Choose the correct statement regarding the partial pressures of respiratory gases.

Answer»

`pCO_2` is more than that of `O_2` in atmosphere.
`pCO_2` in oxygenated blood is EQUAL to partial pressure of` O_2` in deoxygenated blood
Solubility of `CO_2` is 20-25 time lesser than`O_2`
`pCO_2` in TISSUES is equal to `O_2` partial pressure in oxygenated blood.

ANSWER :B


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