BIO SCI 93 Chapter Notes - Chapter 5: Passive Transport, Tonicity, Osmosis

• School: UC-Irvine
• Department: Biological Sciences
• Course: BIO SCI 93
• Professor: Justin Shaffer

Document Summary

Complete this reading guide as you read the textbook pages listed above. You might not have to read every word on every page, rather pay close attention to the questions in this guide and answer them as you work through the textbook. Also pay close attention to the terms that are underlined: these are key terms that you should know the definitions of and be able to apply in new situations. Examine figure 7. 10 to visualize diffusion of solutes. Diffusion is the movement of particles from areas of high concentration to low concentrations. A solute"s concentration gradient is the region along where the density of a chemo substance increases or decreases. Substance tend to move down their concentration gradient and each have their own unique gradient. Diffusion is considered to be passive transport because no energy is required. Substances diffusing naturally go down their concentration gradient.