Biology Question

Sam Rivers sam at
Fri Feb 24 19:14:13 EST 1995

I am a first year Biology student with a question that gave my instructor 
a problem ...  Why does a neuro transmission take energy?  If the Na+ 
ions are greater on the outside than on the inside, therefore when the 
transmission occurs the Na+ ions move in. It seems that this would be 
diffusion and it should require no energy.  Yet, my professor told us 
that this nuro transmission required a considerable amount of ATP but, 
was unable to explain the origin of the energy.

Samantha Rivers 

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