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This Diffusion Across Semipermeable Membranes interactive also includes:
Mitochondria use two semipermeable membranes to work properly. Young scientists adjust the pore size for two membranes. They then observe the diffusion of two different sizes of molecules.
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CCSS:
Adaptable
Concepts
Additional Tags
Instructional Ideas
- Discuss which systems require something to pass through two different membranes
- Challenge scholars to see what pore size allows for the fastest balance of water molecules while keeping the protein contained
Classroom Considerations
- Relies on prior knowledge of diffusion and molecule size
Pros
- Allows scholars to trace one molecule as it moves
- Requires very little class time
Cons
- None