This topic contains a solution. Click here to go to the answer

Author Question: At the normal resting membrane potential of a typical neuron, its sodium-potassium exchange pump ... (Read 154 times)

humphriesbr@me.com

  • Hero Member
  • *****
  • Posts: 550
At the normal resting membrane potential of a typical neuron, its sodium-potassium exchange pump transports
 A) 1 intracellular sodium ion for 2 extracellular potassium ions.
  B) 2 intracellular sodium ions for 1 extracellular potassium ion.
  C) 3 intracellular sodium ions for 1 extracellular potassium ion.
  D) 3 intracellular sodium ions for 2 extracellular potassium ions.
  E) 3 extracellular sodium ions for 2 intracellular potassium ions.

Question 2

Which of the following is not true regarding the establishment of a neuron's resting membrane potential?
 A) Chemical and electrical forces both favor sodium ions entering the cell.
  B) Electrical forces do not push sodium ions into the cell.
  C) The chemical gradient for potassium ions tends to drive them out of the cell.
  D) Ion pumps in the plasma membrane eject sodium ions as fast as they cross the membrane.
  E) Resting membrane permeability to Na+ is very low.

Question 3

Which of the following can cause demyelination?
 A) arsenic poisoning
  B) diphtheria
  C) multiple sclerosis
  D) mercury exposure
  E) Demyelination can be caused by arsenic, diphtheria, multiple sclerosis and mercury.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

frogdreck123456

  • Sr. Member
  • ****
  • Posts: 329
Answer to Question 1

D

Answer to Question 2

B

Answer to Question 3

E




humphriesbr@me.com

  • Member
  • Posts: 550
Reply 2 on: Feb 28, 2019
Thanks for the timely response, appreciate it


T4T

  • Member
  • Posts: 348
Reply 3 on: Yesterday
Excellent

 

Did you know?

More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.

Did you know?

Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.

Did you know?

Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Did you know?

Alcohol acts as a diuretic. Eight ounces of water is needed to metabolize just 1 ounce of alcohol.

For a complete list of videos, visit our video library