Here's why:

* Location: Cytoplasm is the gel-like substance that fills the space between the cell membrane and the nucleus.

* Composition: It's primarily made up of water, but also contains dissolved salts, sugars, proteins, lipids, and other molecules.

* Organelle Housing: Cytoplasm is the "home" for all of the cell's organelles, which are the functional units of the cell (like mitochondria, ribosomes, Golgi apparatus, etc.).

Let me know if you have any other questions!