Write letter in space provided. Hyperpolarization of the postsynaptic membrane due to inhibitory neurotransmitters would be produced by the inward opening of which of the following channels and the subsequent diffusion of the appropriate ion?  Think carefully.    a. sodium channels    b. potassium channels    c. chloride channels    d. calcium channels

Upon reaching the ________ potential, the action potential will occur in an “all” fashion.

Write letter in space provided. Which of the following substances is most likely to passively diffuse across the plasma membrane by diffusing directly through the bilayer?  Think about the composition of the membrane.    a. A positively charged ion    b. A hydrophilic molecule    c. A negatively charged ion    d. A hydrophobic molecule

Conduction in myelinated axons occurs by a process called ______ conduction.

Write the letter in the space provided. Which one of the following statements about EPSP’s is false?    a. They can be produced by the opening of gates to positively charged ions.    b. They are graded.    c. They are able to summate.     d. They are conducted over long distances.     e. They bring the membrane closer to threshold.

What term is used to describe dilation of the distal end of the ureter as it enters the bladder?

Calculate the wavelength in nm of electromagnetic radiation that has a frequency of [a] s-1.

Determine the energy, in J, of a phton with a wavelength of [a] nm.

A water tank has 52 gallons of water when the drain pipe was opened. Let  represent the number of gallons drained. Let  represent the number of gallons remaining in the tank.a) Describe what the expression

Nia Rogers is considering investing in 30-year corporate bonds issued by Duke Energy Company. She knows that she will earn an interest rate of 6 percent by purchasing these bonds. However, she is concerned because she might need to take her money out of this investment in a year, and she has heard that she might have to sell the bonds at a significantly lower price than she will purchase them for. What type of risk is Nia concerned about?