The equilibrium potential of a biological membrane for Na+ is 55 mV at – McqOptions

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1.	The equilibrium potential of a biological membrane for Na+ is 55 mV at 37 C. Concentration of Na+ inside the cell is 20 mM. Assuming the membrane is permeable to Na+ only, the Na+ concentration outside the membrane will be _________ mM. (Faraday constant: 23062 cal.V 1.mol 1, Gas constant: 1.98 cal.mol 1.K 1)
A.	147.0 : 170.0
B.	150.0 180.0
C.	210.0 : 230.0
D.	410.0 : 450.0
Answer» B. 150.0 180.0

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