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Yes, all organelles, including the nucleus, of a eukaryotic cell are contained within the cell's cytoplasm.However, the nucleus also contains its own cytoplasm, known as the nucleoplasm, which is different in composition from the cellular cytoplasm. The nucleus of a cell is found in the center, not to be confused with the nucleolus, which is inside of that. The cytoplasm surrounds the nucleus and is the fluid that c â¦ ontains the different ribosomes, etc.
Function of the Nucleoplasm The nucleus of most cells contains a substance that suspends structures inside the nuclear membrane. Just like the cytoplasm found inside a cell, the nucleus contains nucleoplasm, also known as karyoplasm. The nucleoplasm is a type of protoplasm that is made up mostly of water, a mixture of various molecules, and dissolved ions. It is completely enclosed within the nuclear membrane or nuclear envelope. It is a highly gelatinous, sticky liquid that supports the chromosomes and nucleoli. A soluble, fluid component of the nucleoplasm is called the nuclear hyaloplasm. The main function of the nucleoplasm is to serve as a suspension substance for the organelles inside the nucleus. It also helps maintain the shape and structure of the nucleus, and plays an important role in the transportation of materials that are vital to cell metabolism and function.