This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General physiology, Subject name: Physiology
Nernst potential for K+ is 
Select and explain. 
A. 90, B. -90, C. 70, D. -70
D: -70
Answer: D: -70 
Explanation: Nernst potential is also called equlibrium potential It is the potential at which tjer is no net moment of a paicular ion across membrane Ref:Guyton and Hall textbook of medical physiology 12th edition,page number:35,36