Synaptic vesicles at the neuromuscular junction contain . View Available Hint(s)for Part B calcium acetylcholine ACh receptors synaptic potentials Part C ACh receptors are found mainly in the . View Available Hint(s)for Part C terminal cisternae axon terminal sarcolemma synaptic vesicles Part D What most directly causes synaptic vesicles to release acetylcholine into the synaptic cleft

the answer is 100% density i've answered this question before and done the quiz myself.

passive transport is a movement of biochemicals and other atomic or molecular substances across cell membranes without need of energy input. unlike active transport, it does not require an input of cellular energy because it is instead driven by the tendency of the system to grow in entropy.

so, according to what that says, i believe it's hypertonic and hypotonic.

good luck!