6.1.3.2.1 - Simple Diffusion
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Practice Questions
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What is simple diffusion?
💡 Hint: Think about how oxygen moves in the body.
Name one type of molecule that can use simple diffusion.
💡 Hint: Consider gases that need to move through membranes.
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Interactive Quizzes
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What is simple diffusion?
💡 Hint: It does not require energy.
True or False: Simple diffusion requires a protein to function.
💡 Hint: Think about the size and type of molecules passing.
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Challenge Problems
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Given a scenario where a substance has a high concentration outside of a cell and a low concentration inside, describe how this substance would enter the cell. Include the role of simple diffusion in your explanation.
💡 Hint: Refer to how oxygen enters the bloodstream.
Suppose that a type of fatty acid cannot pass through a semi-permeable membrane due to its size. Discuss the implications for nutrient absorption in the body and how this relates to simple diffusion.
💡 Hint: Consider how larger or polar molecules travel across membranes.
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