The term you are looking for is cytoplasm.
The cytoplasm is a gel-like substance within the cell membrane, excluding the nucleus. It contains all the organelles and various molecules that are essential for the cell’s function. In prokaryotic cells, the cytoplasm fills the entire cell since there is no nucleus. In eukaryotic cells, the cytoplasm surrounds the nucleus and provides a medium for biochemical reactions to occur.
Within the cytoplasm, you’ll find components such as the mitochondria, endoplasmic reticulum, ribosomes, and many more, each playing vital roles in maintaining the cell’s life. Overall, the cytoplasm supports the organelles, helps in cellular processes, and contributes to the cell’s shape.