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Author Question: Describe the key aspects of the resting potential. What will be an ideal ... (Read 268 times)

rlane42

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on: Jun 22, 2018
Describe the key aspects of the resting potential.
 
  What will be an ideal response?

Question 2

The hormone aldosterone results in the ____.
 
  a. conservation of water
 b. excretion of sodium
 c. conservation of sodium
 d. decreased preference for salty tastes


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ally

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Reply #1 on: Jun 22, 2018
Answer to Question 1

All parts of a neuron are covered by a membrane about 8 nanometers (nm) thick (just less than 0.00001 mm), composed of two layers (free to float relative to each other) of phospholipid molecules (containing chains of fatty acids and a phosphate group). Embedded among the phospholipids are cylindrical protein molecules through which various chemicals can pass. The structure of the membrane and its proteins controls the flow of chemicals between the inside and outside of the cell. When at rest, the membrane maintains an electrical gradient, also known as polarizationa difference in electrical charge between the inside and outside of the cell. The neuron inside the membrane has a slightly negative electrical potential with respect to the outside, mainly because of negatively charged proteins inside the cell. This difference in voltage is called the resting potential.

Answer to Question 2

c


rlane42

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Reply 2 on: Jun 22, 2018
YES! Correct, THANKS for helping me on my review

Jossy

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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