BIOL 2051 Lecture Notes - Lecture 5: Reversible Reaction, Cytoskeleton, Pinocytosis
Document Summary
Unit 2 - chapter 5 - 9/19 & 9/21. Be able to recognize self cells vs. other cells. Run a lot of biochemical reactions inside of it. Cell can control (to a large degree) what gets in and what gets out. Diffusion: inherent desire of molecules to evenly spread out in a solution. Molecules are always going to want to move from an area of high concentration to an area of low concentration. When diffusion has occurred and the food coloring has been dropped into the water is equally dispersed. When there is more of some solute on one side of the membrane than the other. Diffusion forces will push solutes to equilibrium across that membrane. Only if that solute can cross the membrane. Moving down from high concentration to low concentration. High to low concentration = moving down the concentration gradient. What takes place when diffusion occurs across a membrane without any sort of protein assistance.
