Cytoplasm and the Cell’s Internal Framework

The cytoplasm is the cell’s internal space that holds organelles and the cytoskeleton. It is suspended in the cytosol, an aqueous fluid made of water, ions, salts, and many organic molecules. Together, these parts create the environment where key cell activities happen.

The cytoplasm is also a ma...

Cytoplasm is a semifluid matrix that fills the interior of the cell. In eukaryotic cells, it spans the region between the plasma membrane and the nuclear envelope and includes all membrane-bound organelles.

In prokaryotic cells, which lack a nucleus, the cytoplasm includes everything inside the plasma membrane. This includes the cytosol, r...