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The fatty membrane surrounding every living cell is a vibrant environment where countless biological processes take place.

Like the plasma membrane, organelle membranes function ... microscopy to take a snapshot through a thin cross-section or slice of a cell. In this way, they can see the structural detail and ...

In order to provide a cell with energy, these molecules have to pass across the cell membrane, which functions as a barrier — but not an impassable one. Like the exterior walls of a house ...