...require a living host cell to survive.
Answer:The cell membrane functions as a barrier that makes it possible for the cytoplasm to maintain a different composition from the material surrounding the cell. The unit membrane is freely permeable to water molecules but very impermeable to ions and charged molecules. It is permeable to small molecules in inverse proportion to their size but in direct proportion to their lipid solubility.
Explanation:
Water would move from outside to the inside of the cell through the semi permeable cell membrane and cause the cell to swell.
It is the nucleus that contains DNA and controls the functions of the cells
Is there a picture or do you want me to explain
