Question

The transfer of gases between blood and alveoli occur through the process of ________.

• A. osmosis
• B. diffusion
• C. active transport
• D. none of the above

Answer 1

The correct option is B diffusion

The transfer of gases between blood and alveoli takes place through the process of diffusion. Diffusion is the process of the transfer of ions or molecules from the region of high concentration to the region of low concentration.

Osmosis is a process in which solvent travels from the region of its higher concentration to the region of lower concentration through a semipermeable membrane.

Active transportation is the process in which molecules travel from the region of low concentration to the region of high concentration. This process requires energy and is also called uphill transportation