6) Does a chemical gradient exist for X+? If so, what is the direction of the gradient? (2 points) a) no chemical gradientb) inward chemical gradientc) outward chemical gradient7) Based on the concentration gradient, would you predict that the equilibrium potential for X+ (EX) is a positive or negative value? (Consider: you need an electrical force to counteract the chemical force.) (3 points)a) positive membrane potentialb) negative membrane potentialc) Unable to determine from the information provided.