Physiology 2130 Lecture Notes - Lipid Bilayer, Golgi Apparatus, Facilitated Diffusion
Document Summary
Section 3. 1 - objectives: by the end of this section, you should be able to: Make a diagram of a cell membrane, showing the two parts of the phospholipid bilayer, the positions of membrane proteins, cholesterol, and carbohydrate moieties. Discuss the permeability of the lipid bilayer. List five functions of the membrane proteins. List five major ways substances cross membranes. List four factors that affect the rate of movement of substances through protein channels. Define osmosis and describe the factors that affect the movement of water across membranes. Describe how chemical and electrical gradients affect the movement of solutions on biological cells. molecules across membranes. Define a resting membrane potential and state its normal polarity and. Describe the forces acting on ions and define equilibrium potential. State the equilibrium potentials for k+, na+, and cl in a nerve strength (voltage). membrane. Describe two functions of the sodium/potassium pump.
