Quiz #3: 1 4. Of the outermost electron in the following four atoms, which electron will be the LEAST strongly bound to the nucleus? D Cu 5. A negatively charged electron is placed in a uniform electric field between two metal plates. The upper plate has a net + charge and the lower plate is net -, so the electric field points down. Which way will the electron be pushed by the field? (a) UP (b) DOWN (c) LEFT (d) RIGHT Inside the membrane > Outside the cell Inside the cell 6. Cell membranes tend to have a persistent net + charge build up on the outside, and a net - charge on the inside. Which way does the electric field point inside the membrane? (in other words, if we drew the electric field arrows, which way would they point?) Extracellular Intracellular (a) Toward the outside of the cell (LEFT) Charge Separation Across Membrane (b) Toward the inside of the cell (RIGHT) (c) There is no electric field inside the membrane