This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: e. The sodium/potassium pump is inactivated 4) If a certain toxin prevented the closing of voltage gated sodium channels, which of the following would occur? i. The sodium/potassium pump would be inactivated ii. The membrane would be unable to repolarize to the resting potential iii. The neuron would no longer be able to transmit action potentials iv. Voltage gated potassium channels would be unable to close a. i, ii, ii b. ii, iii, iv c. ii only d. iv only e. iii only 5) Which of the following occurrences will depolarize a neuron? a. Opening of potassium leak channels b. The activity of the sodium/potassium pump c. Closing of all channels and pumps in a cell d. Opening of voltage gated potassium channels e. Opening of voltage gated sodium channels 6) What channels are opening or closing at each point in this graph of an action potential? 7) Are neurons the only cells with a resting membrane potential?...
View Full Document
This note was uploaded on 02/05/2011 for the course BILD 2 taught by Professor Schroeder during the Spring '08 term at UCSD.
- Spring '08