About this document
Plastic Baggie Cell Model Experiment by Dianne Tarampi is a document available to read on EtoBox.
This document describes an experiment using a plastic bag filled with cornstarch and water to model a cell membrane. The bag is placed in a solution of iodine and water or vice versa to observe diffusion. Students are asked to make predictions and record observations about which direction iodine or cornstarch will diffuse depending on their starting locations. The purpose is to demonstrate that a cell membrane is selectively permeable, allowing some substances to pass through but not others.
- Author
- Dianne Tarampi
- Language
- EN