1. The problem statement, all variables and given/known data Calculate number of channels present in a lipid bilayer q = 1.6^-19; D (diffusion constant) = 1.2E-9; C (Concentration); 4.36; k = 1.38E-23; T=298; d = 2.5E-9 Therefore G1 = 1.27E-17 Channel area = 7.07E-18 measured conductance (from injecting Na+ concentration of 100mM) = 149.24uS 2. Relevant equations G1 (conductance) = q^2DC/kTd Gm = g/[tex]\pi[/tex]r^2 3. The attempt at a solution Conductance of a single channel = 1.27E-12 x 7.07E-18 Number of channels = Gm/G1 ?? Calculating the number of channels is what is getting to me. I have the area of the channel, and I have a measured conductance from injecting a concentration Thanks!