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Title: What is the concentration of K+? Why? Post by: jimdawg3025 on Oct 1, 2014 Inside concentrations of Ions are as Follows
Na+= 20 mM K+= ?? Cl-= 5 mM A- (impermeable ions)= 165 mM Outside concentrations Na+= 140 mM K+= 5 mM Cl-= 145 mM impermeable non electrolytes= ?? Plz Help!!! Its Urgent!! Title: Re: What is the concentration of K+? Why? Post by: iwachu on Oct 3, 2014 Shouldn't the inside (+) charges equal the outside (+) and vise versa for the (-) charges?
The (+) outside charges for Na+ (140mM) and K+ (5mM) totals 145mM. So it makes sense if the inside K+ is equal to 145mM minus Na+ inside (20mM), or 125mM. The (-) charge inside is A- (165mM) and Cl- (5mM) = 170mM. So, the impermeable non electrolyte should be 170mM minus Cl- outside (145mM), or 25mM. Title: Re: What is the concentration of K+? Why? Post by: Jinesh on Oct 4, 2014 You say, "Shouldn't". Does that mean you're unsure about it yourself?
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