Question

Carbon dioxide moves out of the cell by diffusion, when

• A. Concentration of carbon dioxide is more outside the cell than inside the cell
• B. Concentration of carbon dioxide is less outside the cell than inside the cell
• C. Concentration of carbon dioxide inside the cell is same as outside the cell
• D. Concentration of oxygen is more inside the cell than outside the cell

Answer 1

The correct option is B Concentration of carbon dioxide is less outside the cell than inside the cell

Diffusion is a process in which solute moves from the area of higher concentration to the area of lower concentration till the equilibrium is achieved. It takes place liquid and gaseous form. When concentration of carbon dioxide is less outside the cell than inside the cell, it will move out of the cell by diffusion in order to achieve the equilibrium. The movement of carbon dioxide from the cell to the outside will stop when concentration is equal inside and outside the cell.

Thus, the correct answer is 'Concentration of carbon dioxide is less outside the cell than inside the cell.'