Which of the following statements is FALSE  about electrical synapses?

Which of the following is FALSE regarding the K+ inward rectifying channel?

Which channel has 4 subunits required for a functional channel, a voltage sensor, and  inactivates IMMEDIATELY after opening?

The voltage-gated sodium channel is mutated so that it de-inactivates more quickly than normal. How will the neuron be affected?

When the membrane potential of a neuron is below the threshold for the voltage-gated sodium and potassium channels: (choose all that are correct.  *If you can think of a specific scenario where the answer wouldn’t hold, etc, but it is generally a true statement, select it.)

A neuron is voltage clamped above threshold and the induced currents are recorded. Then the experiment is repeated: the neuron is voltage clamped to above threshold, and the currents are recorded, but this time the experimenter has applied Tetraethyl ammonium (TEA) to block voltage gated potassium channels. Compared to the first recording (without TEA), which part of the current will change in the second recording?

Assume you have a beaker with a selectively permeable barrier which only allows the movement of Ca2+ across the membrane. On the left side of the barrier you have a high concentration of CaCl2, while on the right side of the barrier you have a low concentration of  CaCl2.At the start, the electrical gradient for Ca+2 will be…

Which of the following is an outward current?

Assume you have a beaker with a selectively permeable barrier which only allows the movement of calcium (Ca2+) across the membrane. On the left side of the barrier you have a high concentration of calcium chloride (CaCl2,) while on the right side of the barrier you have a low concentration of calcium chloride (CaCl2,)At equilibrium the driving force on chloride (Cl-) will be

Which of the following does NOT influence the DIRECTION of ion flow?