PHYSICAClass 11 Botany simulations · Cell: The Unit of Life
Fluid mosaic model of the membrane
Zoom into the plasma membrane: a lipid bilayer with proteins floating in it. Warm it up and watch the lipids move.
What to notice
Polar heads face the watery outside and cytoplasm; non-polar tails point inwards. Proteins can drift sideways.
Key relation
Lipid bilayer + integral and peripheral proteins (Singer and Nicolson, 1972)
Try this
Raise the temperature and watch lateral movement increase.
What you can change
- Temperature: 5 to 45 °C
- Show proteins: choose Yes, No
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