Eukaryote domain and animal kingdom
The phospholipid bilayer is the cell membrane of the cell so the only answer choice that makes any sense is the first one - The balance of ions inside a cell will be disrupted and proteins couldleak out because the phospholipid bilayer forms the cell membrane.
Autoinducer molecules are signalling molecules that need bacteria. In order for the autoinducer molecules to signal, the bacteria must find a way to initiate the signal and a way to respond to the signal it had created. Autoinducer molecules increase in production as the density of the bacteria cell increases.