Which of the following is TRUE of Ca2+ signaling?

You are designing an experiment to correlate the number of quanta released and the number of synaptic vesicles fusing following stimulation of a motor neuron axon that innervates a muscle fiber. How could you INCREASE the probability of vesicle release?

Which of the following statements is FALSE  about electrical synapses?

Which of the following proteins binds Ca2+ ?

In the classical model of a voltage-dependent K+ channel, how many times does a single alpha subunit weave in and out of the membrane (i.e. how many transmembrane domains does it have)?

Which of the following would INHIBIT postsynaptic depolarization following a presynaptic action potential?

Tetraethyl ammonium (TEA) is applied to a neuron to block voltage gated potassium channels. The neuron is then voltage clamped above threshold and CURRENT is recorded. Compared to a recording at the same voltage clamp, but without TEA, which part of the current will change? HINT – think about how current and voltage plotted

In which scenario would the 2P  leak channel pass potassium current?

The probability that a single potassium channel is open is directly proportional to the driving force on the channel.

____________ channels do NOT have an inactivation domain.