Question

Read the following statements about respiratory system of humans :
I. Type II alveoli help in secretion of a chemical surfactant called lecithin , which decreases the surface tension around alveoli.
II. The diffusion membrane for exchange of gases is made up of three major cellular layers.
III. Binding of oxygen with hemoglobin is primarily related to the partial pressure of `O_2`.
IV. Every 100 ml of oxygenated blood can deliver around 5 ml `CO_2` to the tissues under normal physiological conditions.
How many statement is /are correct from the above ?

Answer 1

Answer:

I do not remember this chapter

Explanation:

please wait your answer.