character: Dr. Lee
topic: Cell Membrane and Its Role in Transport
grade: 9
subject: Biology
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character: Ms. Johnson
topic: Diffusion and Osmosis through Cell Membranes
grade: 9
subject: Biology
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character: Mr. Smith
topic: Active Transport Mechanisms in Cells
grade: 9
subject: Biology
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character: Dr. Patel
topic: Structure of the Cell Membrane
grade: 9
subject: Biology
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