Concept #1: Physical Properties of Biological Membranes
Concept #2: Enzymes Catalyzing Transverse Diffusion
Concept #3: Transition Temperature of Lipid Bilayers
Practice: The fluidity of a bilayer is generally increased by:
a) The binding of water to the fatty acyl side chains.
b) An increase in fatty acid chain length.
c) An increase in the number of double bonds in the fatty acid hydrocarbon chains.
d) A decrease in temperature.
Practice: Which of the following would increase the transition temperature of a membrane?
a) A decrease in the fatty acid tail length.
b) An increase in the number of double bonds in the fatty acid chains.
c) Loose packing of fatty acid tails.
d) Free fatty acids in the environment.
e) None of the above would increase the transition temperature.
