Question

oxygen between the wall of alveoli and red blood cell moves from the​

Answer 1

Explanation:

In a process called diffusion, oxygen moves from the alveoli to the blood through the capillaries (tiny blood vessels) lining the alveolar walls. Once in the bloodstream, oxygen gets picked up by the hemoglobin in red blood cells.

Answer 2

Oxygen between the wall of alveoli and red blood cell moves from the alveoli into the red blood cells of the surrounding capillaries.

• Various factors are responsible for the movement of oxygen from the alveoli into the red blood cells of the surrounding capillaries. These factors include- partial pressure of oxygen, the solubility of involved gases, membranes involved in diffusion etc.
• The space between the alveolar wall and the red blood cells of surrounding capillaries is quite less. Besides this, the partial pressure of oxygen is high in alveoli and low in surrounding capillaries. Hence, oxygen can easily diffuse from alveoli to surrounding capillaries.