The solution is said to be in equilibrium – there is therefore no net movement in one direction. Water leaves the cell by osmosis. The cytoplasm shrinks and pulls away from the cell wall.

During prometaphase, the nuclear envelope that encloses the nucleus breaks down, and the nucleus is no longer separated from the cytoplasm. Protein formations called kinetochores form around the ...

The nuclear pore is a protein-lined channel in the nuclear envelope that regulates the transportation of molecules between the nucleus and the cytoplasm. In eukaryotic cells, the nucleus is ...

The slideshow shows an example of osmosis showing the direction of movement of water between two different concentrations of sugar solutions. In pure water, the cell contents (the cytoplasm and ...