Please explain the following 1. If only potassium leakage determined membrane po

Please explain the following 1. If only potassium leakage determined membrane potential what value would membrane potential have in millivolts?2. What kind of plasma membrane molecule does phospholipase C act upon? ( I understastand it cleaves the glycerophosphate bond)3. What enzyme is needed to catalyze conversion of arachidonic acid into prostaglandin signal molecule??4. The proteins that lipid-soluble signals like thyroid hormones must bind to for travel in the blood are called ??? ( I understand that transport proteins that are water soluble transport them in the blood)