Although we are not suggesting that the plasma membrane is homogenous or that movement of molecules in the membrane occurs only by simple diffusion, we do suggest that either SPT be performed in ...
This takes place when molecules diffuse across the cell membrane by travelling through specific transport proteins. It occurs down a concentration gradient - molecules move from an area of high to ...
Cell membranes protect and organize cells. All cells have an outer plasma membrane that regulates not only what enters the cell, but also how much of any given substance comes in. Unlike ...
This plasma-electrochemical reactor, described in a study published in the Journal of ... In nitrogen fixation, the electrical energy of a lightning strike breaks up nitrogen molecules in the ...