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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?

If you voltage-clamp a neuron up to +60mV, what type of current(s) will be detected? (select all that apply)

At the resting state, a typical mammalian neuron is more __insert answer 1___ on the inside compared to the outside, with more __insert answer 2___ on the inside compared to the outside. answers choices are given as answer 1 comma answer 2

Which of the following is an outward current?

Which of the following statements is/are true regarding driving force? (select all that apply)

Which of the following statements are TRUE about driving force? (select all that apply)

A beaker with two chambers and a selectively permeable barrier contains sodium chloride (NaCl). Initially, the left side contains a low concentration of sodium chloride (NaCl) while the right side contains a high concentration. The barrier is permeable to chloride. At equilibrium what is the direction of the electrical driving force on chloride?

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…

To have a current for ion X (IX) which of the following is/are required?

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