Animal cells explode when they fill with too much water, but plant cells do not
Water molecules move from high concentration solution to less concentration solution to make solution equal on both sides.
Animal and plant cells structure different in few terms as animal cells do not have cell wall and plant cells have cell wall.
When plant cells fill with too much water then water diffuses or we say moves into the cell. It will not burst because cell wall supports the cell and helps it not explode when water enters by osmosis.
Animal cells do not have cell wall as it don’t need extra support or protection as plant cells need. It has only a thin layer of cell membrane that swell and may burst if too much water enters into the cell by osmosis.