The nucleoplasm is a gelatinous liquid within the nucleus that surrounds the chromosomes and the nucleoli. It is important, because many substances, including enzymes and nucleotides, are dissolved in the nucleoplasm.
Nucleoplasm is made primarily of water, ions and a various mixture of other molecules. It is a fairly sticky liquid that is completely enclosed within the nuclear membrane. It serves as a suspension medium for all of the organelles inside the nucleus, and it also helps maintain the shape and structure of the nucleus. One other function is that it is responsible for the transport of materials that are vital to metabolism and cell function.