Biology › Membranes and transport across cells

Membranes and transport across cells

Canonical unit B04

• The fluid mosaic: what a membrane is actually made of
  The fluid mosaic model, why a phospholipid bilayer assembles itself, intrinsic and extrinsic proteins, channel and carri…
• Diffusion and osmosis: movement that costs nothing
  Simple and facilitated diffusion, the factors in Fick's law and the relationship between them, osmosis defined by water …
• Active transport, co-transport and moving things in bulk
  Active transport against a concentration gradient using carrier proteins and ATP, the sodium-potassium pump and its thre…

Practical work that lands here

• Investigating membrane permeability
• Water relations of plant tissue: osmosis and transpiration