Gasesous Exchange

Question 1

Gaseous Exchange

Answer 1

• Process in which one type of gas is exchanged for another
• Occurs by diffusion between air in the alveoli and blood in capillaries
• Delivers oxygen from lungs to bloodstream while removing carbon dioxide

Question 2

Diffusion

Answer 2

• Process by which a substance such as oxygen passes through a cell membrane either to get into the cell or to get out of the cell
• Substances move by diffusion from an area of high concentration to low concentration