Podcast
Play an AI-generated podcast conversation about this lesson
Questions and Answers
What is the main reason for the movement of carbon dioxide molecules through the cell membrane?
What is the main reason for the movement of carbon dioxide molecules through the cell membrane?
- The cell membrane is impermeable to carbon dioxide
- The cell is not making carbon dioxide by respiration
- Higher concentration of carbon dioxide molecules inside the cell (correct)
- Higher kinetic energy of carbon dioxide molecules outside the cell
What is the term for the difference in concentration of a substance from one area to another?
What is the term for the difference in concentration of a substance from one area to another?
- Concentration gradient (correct)
- Cell membrane permeability
- Diffusion rate
- Kinetic energy
In which direction will the carbon dioxide molecules primarily move through the cell membrane?
In which direction will the carbon dioxide molecules primarily move through the cell membrane?
- Randomly in both directions
- From inside to outside the cell (correct)
- From outside to inside the cell
- Not at all, since the cell membrane is impermeable
Why are the carbon dioxide molecules constantly moving about?
Why are the carbon dioxide molecules constantly moving about?
Signup and view all the answers
What is the process by which carbon dioxide molecules move through the cell membrane?
What is the process by which carbon dioxide molecules move through the cell membrane?
Signup and view all the answers
Flashcards are hidden until you start studying
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.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
