C.2.2 - cell membrane

Cards (6)

  • Phospholipid bilayer
    • Hydrophilic head group - water loving, dissolves easily
    • Hydrophobic tail group - water fearing, doesn’t dissolve easily, hides on inside to shield from water 
  • Glycoproteins - transport mechanism for cell, act as hormones
  • Cell membrane functions
    • Maintain equilibrium
    • Facilitates materials passing through cell
    • Protect cell from invaders
    • Hold cell together
    • Communicate with other cells
    • Fluid mosaic model - all parts of the cell membrane (although still looking) are always moving
  • Semi-permeable - some materials can cross, others can’t
  • Particle model of matter
    • All things are made up of particles
    • Particles are always moving
    • There are spaces between particles
    • Particles are attracted to each other