Understanding Movement of Molecules across the Cell Membrane
17 Apr 2020 | | Contributor(s):: Brandi Childress, NNCI Nano
This lesson uses a macro-model to demonstrate the diffusion of molecules across the cell membrane. A deshelled egg serves as the cell model to observe movement in and out of the “cell”. Students will learn that the cell membrane is composed of a complex nano-structured...
Linear Diffusion and Cell Signaling
17 Apr 2020 | | Contributor(s):: NNCI Nano
In this activity, students explore the concept of diffusion as a component of cell communication. Specifically, students will explore how the rate of diffusion varies with distance and concentration gradient. They will use a pipet with water and dye to observe a macro-model of diffusion....
Cells: The Building Blocks of Life Learning Module - Instructor Guides
28 Aug 2017 | | Contributor(s):: Southwest Center for Microsystems Education (SCME)
This learning module provides a review of "cells", the smallest unit exhibiting the properties of life. It discusses how these cells are being used in bioMEMS as well as other micro and nano-sized devices. A research activity provides the opportunity to further explore how...
Cells: The Building Blocks of Life Learning Module
17 Jan 2017 | | Contributor(s):: Darren Hayes, Nancy Healy, NNCI Nano
Many plastics are in our oceans due to pollution, including ocean dumping and land runoff. Sunlight and alkaline ocean water break these plastics down into small particles, many are nanoscale in size. These nanoparticles can easily enter our cells. Students examine if and how these...