character: Sam the Chemist
topic: Cell Membrane Structure
grade: 9
subject: Science
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character: Sam the Chemist
topic: Biology of Cells
grade: 9
subject: Science
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character: Sam the Chemist
topic: Functions of Membrane Proteins
grade: 9
subject: Science
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character: Sam the Chemist
topic: Fluid Mosaic Model of Membranes
grade: 9
subject: Science
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