Why does transverse diffusion require enzymes to occur at a significant rate?

How does the presence of flippase and floppase affect the lipid composition between the inner and outer sheets of a biological membrane?

What is the transition temperature (Tm) of lipid bilayers?

How does the degree of saturation affect the transition temperature of phospholipids?

How might an organism adapt its membrane composition in response to cold temperatures?

What effect does scramblase have on lipid composition between bilayer sheets?

How does the length of hydrocarbon chains affect the transition temperature of phospholipids?