It is within the Cytoplasm that most of the cell's chemical reaction take place. Most Cytoplasm is a jellylike substance within which organelles carry out specific function.

Could there be a reason why the Nucleus activities are somewhat separated from the cytoplasm, the need for a nucleus membrane?

What is the cytoplasm made of?

Cytoplasm is defined as a jelly like substance, where many important reactions take place. Smaller structures called organelles carry out more specific functions.

Does the cytoplasm hold the organelles in place or is it only the cell membrane that holds things together?