Here's why:

* Jelly-like Consistency: Cytoplasm is a gel-like substance that fills the space between the cell membrane and the nucleus. It's not completely liquid, but it's not solid either, hence the jelly-like description.

* Mostly Water: Cytoplasm is primarily composed of water (around 70-80%).

* Proteins: Proteins are a major component of cytoplasm, playing crucial roles in various cellular processes like metabolism, structure, and transport.

Other important components of cytoplasm include:

* Carbohydrates: Provide energy and structural support.

* Lipids: Form cell membranes and store energy.

* Inorganic Ions: Play vital roles in various cellular functions.

In summary: Cytoplasm is the gel-like, water-rich substance that makes up the bulk of a cell. It contains a variety of molecules, including proteins, carbohydrates, lipids, and inorganic ions, and is the site of many important cellular processes.