| http://digfir-published.macmillanusa.com/hm_custom_osu/hmlsu_wischusen_f13_lab6.html | Chapter 2. Movement of Materials Across the Cell Membrane II
| 51deb8d5757a2e7f18000029 |
| http://digfir-published.macmillanusa.com/hm_custom_osu/hmlsu_wischusen_f13_lab6_dlap.xml | DLAP questions | 51deb8d5757a2e7f18000029 |