In this unit, the students will explore some of the
properties and processes of the cell membrane including permeability,
passive transport, equilibrium, diffusion, osmosis, cell tonicity
and rates of diffusion. The students perform a number of laboratory
activities intended to lead them, through exploration and analysis,
to a thorough understanding of the importance of a cell membrane
and the physical processes of diffusion and osmosis.
The unit includes both teacher and student materials.
Teacher materials include background information, scheduling suggestions,
preparation instructions, evaluation keys, and a resource list.
Student materials include a background reading sheet, several
exploratory activities with evaluation questions, a culminating
experiment, and a quiz.
Science Education Connection|
Department of Biochemistry
The University of Arizona
Wednesday, February 12, 1997