Question

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> The following picture depicts a process that is reponsible for exchange of gases. Can you name the process (X) and mention the place where it takes place during exchange of gases (Y)?

• A. X-respiration; Y-alveoli
• B. X-diffusion; Y- alveoli
• C. X-diffusion; Y- nose
• D. X-diffusion; Y- trachea

Answer 1

The correct option is B X-diffusion; Y- alveoli

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Diffusion is the movement of molecules from an area of high concentration to an area of low concentration. This phenomenon is responsible for the exchange of gases between the alveoli and the blood capillaries, as well as between the capillaries and the cells.