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Cell Size and Diffusion—Student Laboratory Kits

By: The Flinn Staff

In the Cell Size and Diffusion Laboratory Kit for biology and life science, cut open stained agar cells and see the diffusion pattern for yourself.

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Why are cells so small? Why aren’t cells larger? Wouldn’t it be more efficient to have larger cells? When your students cut open their stained agar cells and see the diffusion pattern for themselves, the answers will be obvious. Student measurements and calculations during this hands-on laboratory will dramatically clarify the concept of surface area to volume ratio. This concept is key to understanding cell size limitations. Teacher Notes, reproducible student handouts and all necessary chemicals and specialized equipment are provided.

Complete for 30 students working in pairs. Super Value Kit is complete for 5 classes of 30 students working in pairs.

Correlation to Next Generation Science Standards (NGSS)

Science & Engineering Practices

Developing and using models
Planning and carrying out investigations
Analyzing and interpreting data
Constructing explanations and designing solutions
Using mathematics and computational thinking

Disciplinary Core Ideas

MS-LS1.A: Structure and Function
HS-LS1.A: Structure and Function

Crosscutting Concepts

Scale, proportion, and quantity
Systems and system models
Structure and function
Stability and change