1) You get a graduated cylinder and fill it with water
2) Then You add sand and then add salt
3) You will notice that the sand and salt immediately fall to the bottom that is because their density is greater than water.
Answer: No, because the lysosome and the cell, membrane are needed.
If cells didn't have a membrane, the cell would just melt everywhere. If we didn't have lysosomes, there would be a lot of toxins in the cells.
Hope this helps :)