When phospholipids are dispersed in an aqueous solution, they will often form more ordered structures in the form of micelles, liposomes, or lipid bilayers. This behavior seemingly contradicts the second law of thermodynamics. Why is this behavior in agreement with the second law of thermodynamics? Liposome Micelle Bilayer sheet

List two differences you would expect to see in the composition of lipids in the E. coli membrane when the cells are incubated at 25 °C compared to incubation at 37 °C.

Answer the following question based on the structure of the molecule below. NH HO-P-o он он NH2 OH OH ÓH OH Molecule X is a analog of which is likely water and would permeate the plasma membrane. OA, nonhydrolyzeable; GTP; insoluble; readily B. nonhydrolyzeable; ATP; insoluble; readily c. nonhydrolyzeable; ATP; soluble; readily D. nonhydrolyzeable; GTP; soluble; not E. nonhydrolyzeable; GTP; soluble; readily

How it is that cells are making larger, more complex molecules, yet they do not defy the second law of thermodynamics? (note: cells are open systems not closed)

The compound 2,4-dinitrophenol (DNP), which was used in diet pills in the 1930s but later shown to have dangerous side effects, allows protons to diffuse across membranes. Why is it dangerous to consume DNP?

select the false statement regarding phospholipid bilayer membranes.     phospholipid bilayer part of the biological membrane has to be highly fluid to support its biological function. One of the forces driving phospholipid aggregation are Vender Waals interaction. Aggregation of phospholipid molecules is favored by higher entropy of water molecules in the aggregated state. Fluidity of phospholipid membranes is lower with higher content of unsaturated fatty acids. Phospholipid membrane containing unnatural trans unsaturated fatty acid are more rigid.