Compléter Parts of a Cell - BasicVersion en ligne Complete the gaps with the corresponding words. par Gabriel Mantilla 1 A is a double membrane that encloses the cell nucleus . It serves to separate the chromosomes from the rest of the cell . The is found in the middle of the cells , and it contains DNA arranged in chromosomes . is the gelatinous liquid that fills the inside of a cell . It is composed of water , salts , and various organic molecules .