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MIDDLE SCHOOL

Life Science

Structure, Function, and Information Processing

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Structure, Function, and Information Processing: Cell Membrane and Transport

Diffusion

Description

Diffusion

Diffusion is the movement of molecules from an area of high concentration to an area of low concentration. This process occurs in liquids and gases and is essential for many biological functions. Cells rely on diffusion to transport oxygen, carbon dioxide, and other small molecules across their membranes without ...

Transcript

Have you ever noticed how the smell of cookies baking in the kitchen spreads throughout the house? That’s diffusion! The particles that make up the smell move through the air to areas with less concentrated smell.

This process is called diffusion.

Here, molecules naturally move from areas of high concentration to areas of low concent...

Tags

DiffusionMolecular MovementConcentration GradientMembrane PermeabilityTemperature EffectMolecule SizeFood Coloring ExperimentScent DiffusionStructure FunctionCrosscutting Concept

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