Membrane fluidity

Membrane Fluidity Activity

Developed by:  Donna Koslowsky and Jon Stoltzfus
Modifications:  

Learning Objective:

"Students will be able to describe the movement of the components of a cell membrane, explain how membrane fluidity is influenced by temperature and membrane composition, and predict how changes in environment and composition will influence fluidity."

Textbook: Campbell 9e; Chapter 7 Membrane Structure and Function

Connection to Vision and Change*
Core Concepts

2. STRUCTURE AND FUNCTION:
Biological systems are built using combinations of subunits that drive increasingly diverse and dynamic phyisiological responses in living organisms. Understanding the relationships between biological structure and function.

Core Competencies
1. ABILITY TO APPLY THE PROCESS OF SCIENCE and 2. ABILITY TO USE QUANTITATIVE REASONING.
Evaluation of experimental evidence.  Developing and interpreting graphs.


 
*Vision and Change: A Call to Action. Washington, DC: AAAS; 2010.  www.visionandchange.org/VC_report.pdf. 

Description

Students were assigned Mastering Biology activites that introduced Biological membranes.  The activity was designed to follow a short minilecture on membrane structure.  The students are then asked to work in groups to answer a number of questions prior to a series of clicker questions. In our initial use of this activity, we found that 3 - 5 minutes is plenty of time for the students to work together to answer the questions.  

 

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Questions and follow-up clicker sequence791.49 KB
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Background info about fluidity for instructors202.65 KB

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This material is based upon work supported by the National Science Foundation (DUE grants: 1438739, 1323162, 1347740, 0736952 and 1022653). Any opinions, findings and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the NSF.