Consider a neuron in the steady state with respect tomembrance
voltage, ion concentrations and volume. na+and
k+ are pumped aacross the membrance, butcl-
os not. the membrance has ion-selectivecl- channels. (a)
express the internal cl-concentration [cl-], in terms of
the external cl- concentration[cl-], the membrance voltage, v, the
unitary charge, q, boltzman'sconstant, k, and temperature on the
kelvin scale, t.

< > according to newton's third law of motion, forces always act in equal but opposite pairs. another way of saying this is for every action, there is an equal but opposite reaction.< >

because natural gas is colorless, odorless, and tasteless, distributors add mercaptan (a chemical that smells like sulfur) to give natural gas a distinct unpleasant odor (it smells like rotten eggs). they locate the types of rock that are likely to contain natural gas deposits.