What is the structure of the cell (plasma) membrane and how does its structure relate to its functions?
• List the components and describe the structural arrangements of the cell membrane according to the Fluid Mosaic hypothesis. This should include: glycoproteins, phospholipids, cholesterol, integral proteins, and peripheral proteins. • Be able to diagram or label an already drawn diagram of the cell membrane according to the Fluid Mosaic hypothesis. • How do materials pass through the cell membrane and how is this passage regulated? • Differentiate between passive and active transport mechanisms. • Define and describe the passive processes by which materials are transported across the cell membrane. These should include: diffusion, osmosis, facilitated diffusion, dialysis and filtration. • Explain the terms: solution, solvent, solute, hypertonic, hypotonic and isotonic. • Differentiate between osmotic pressure/osmolarity and filtration/hydrostatic pressure. • Explain the effect on a cell placed in any of the three (3) solution types mentioned above. • Define and describe the three (3)
