Diffusion and Cell Size Lab Activity

Aldon Corporation

Why are cells microscopic? The answer relates to the needs for the cell to effectively move materials in and remove waste. In this activity, students will create simulated cells (agar blocks) of different sizes and examine how effectively a substance is able to diffuse into the cell in a set period of time.


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Item Price Qty
Small Group Learning, Diffusion and Cell Size ALD3003-SGL $20.75

 A special indicator in the cells will allow students to visualize the degree of diffusion. The results will clearly display the fact that a smaller volume creates a more favorable condition for the exchange of material across a cell membrane. Kit contains enough materials for 15 groups of students. Teacher’s Manual and Student Study Guide copymasters are included.

Aligned to the Next Generation Science Standards (NGSS)*

Disciplinary Core Ideas: LS1.A

Performance Expectations: MS-LS1-1; MS-LS1-2

Cross Cutting Concepts: Scale, Proportion, and Quantity Structure and Function

Engineering Practices: Developing and Using Models; Planning and Carrying Out Investigations

Kit Includes:

  • 1 x 75g Agar
  • 1 x 25mL Bromothymol Blue Concentrate
  • 3 x 25mL Hydrochloric Acid, 2.0M
  • 16 Agar Block Casting Trays
  • 15 Plastic Cups
  • 15 Plastic Knives
  • 15 Plastic Stirrers

Regulatory Note: Small Qty Exemption 49CFR173.4

*”Next Generation Science Standards” is a registered trademark of Achieve. Neither Achieve nor the lead states and partners that developed the Next Generation Science Standards was involved in the production of, and does not endorse, this product.

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause cancer, birth defects and reproductive harm.  For more information go to www.P65Warnings.ca.gov.

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