(a) Cytoplasm is a liquid that fills the interior of each cell. The plasma membrane of the cell defines its perimeter. Water, ions, salts, and proteins make up cytoplasm. The cytoplasm of the cell contains the cell’s organelles, which are suspended in it.
(b) The nucleus is in charge of the cell’s entire activity. The control centre of a cell is what it’s called. It contains the cell’s information, which is DNA. The nucleus is also in charge of the cell’s ribosome and protein production.
Final Answer : Cytoplasm is a thick fluid that fills each cell and is surrounded by the cell membrane. The nucleus is located in the centre of the cell and houses DNA organized into chromosomes.