The migrated cells (typically attached on the reverse side of the membrane) must be stained with chemical dyes or labeled with fluorescent molecules. In most cases, the membrane is removed from ...

Instead of labeling one protein at a time ... And two further colors mark the cell nucleus and membrane to delineate individual cells better. Thirdly, this color scheme enables not only to ...

and is one of the ways substances can move across the cell membrane, into or out of the cell. Products of digestion, dissolved in water, can pass across the wall of the small intestine by diffusion.