5 Questions
What is the main reason for the movement of carbon dioxide molecules through the cell membrane?
Higher concentration of carbon dioxide molecules inside the cell
What is the term for the difference in concentration of a substance from one area to another?
Concentration gradient
In which direction will the carbon dioxide molecules primarily move through the cell membrane?
From inside to outside the cell
Why are the carbon dioxide molecules constantly moving about?
Because of their kinetic energy
What is the process by which carbon dioxide molecules move through the cell membrane?
Diffusion
Study Notes
Diffusion and Concentration Gradient
- Diffusion occurs when a substance is more concentrated in one place than another, resulting in the movement of molecules from an area of higher concentration to an area of lower concentration.
- The difference in concentration is called a concentration gradient.
- The movement of molecules is driven by their kinetic energy, causing them to constantly move about.
Carbon Dioxide Diffusion Across the Cell Membrane
- Carbon dioxide is more concentrated inside the cell than outside when produced by respiration.
- The cell membrane is permeable to carbon dioxide, allowing molecules to move in either direction through it.
- Due to the concentration gradient, more carbon dioxide molecules will move from inside the cell to outside than in the other direction over time.
Learn about the process of diffusion through the cell membrane, including concentration gradients and kinetic energy. Understand how substances like carbon dioxide move in and out of the cell.
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