Diffusion and Osmosis 2
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- What is the most abundant lipid in the plasma membrane?
- Phospholipid
- What is the Membrane Protein a mixture of?
- different proteins which are embedded in the fluid matrix of the lipid bilayer
- Where is the membrane protein and lipid synthesized?
- ER and Golgi Apparatus
- What is selective permeability controlled by?
- plasma membrane
- Do polar molecules cross the membrane rapidly?
- No
- What kind of molecule can pass through the membrane through selective permeability rapidly?
- hydrophobic molecules
- Define Dynamic Equilibrium.
- when solute molecules continue to cross the membrane at equal rates in both directions
- Define Osmosis.
- movement of water across a semipermeable membrane
- Define Tonicity.
- ability of a solution to cause a cell to gain or loose water
- Define Isotonic Solution.
- when 2 solutions have the same concentration
- Define hypotonic solution
- solution contains more solutes and less water
- define hypertonic solution
- solution contains more solutes and less water