Lecture 10. Background for cell propulsion Fluid dynamics Enzyme kinetics How do animals swim?: 1. pushing fluid backward by limb action; 2. pushing fluid forward by resistance of body.
When f > fcrit- inertial forces dominate
Nature Reviews Molecular Cell Biology2; 669-677 (2001)ATP SYNTHASE — A MARVELLOUS ROTARY ENGINE OF THE CELL
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Nano versus macro elasticity
Behaviour relative to kT: Stretch a rubber band and a string of paper clips.
Significant for The nanometer-scale monomers of a macromolecule, but not for a string of paper clips. The retracting force exerted by a stretched rubber band is entropic. It increases disorder.
Do most polymers have persistence lengths longer than their total (contour) length?
Today’s Game Outcome
Need a P for
% A is the transition probability
A= [.75 .5
% P is starting Probability
for i = 1:20