Discover how the cell membrane regulates substance movement with Type 1 Ions, Type 2 Large Polar Molecules, Type 3 Small Polar Molecules, and Type 4 Small Nonpolar Molecules. Learn about selective permeability and facilitated diffusion, where embedded proteins aid in passive and active transport. Understand how molecules traverse phospholipid bilayers based on their size and polarity. Explore the membrane’s role in controlling material flow, from diffusion mechanisms to energy-dependent …
