The cell in cell phone is a shortened term for cellular. Cellular is defined as a mobile radio signal, often in a car that uses a network of short ranged transmitters which uses a central station to...
Portable phones only have a very limited range, due to aerial size, power available and limits of radiation.They communicate over a short distance to a local base station, which can then connect them...
semi permeable means the cell chooses what comes into it, they have this so they can let food particles and water in but not large items or other cells