Final answer:
The expected Na/K ATPase activity in PKD cells treated with 10^6 pm ouabain cannot be accurately calculated without more specific information.
Step-by-step explanation:
The sodium-potassium ATPase is an active transport protein that moves sodium and potassium ions across the cell membrane. In this case, the question asks to calculate the expected Na/K ATPase activity in PKD cells treated with 10^6 pm ouabain. To calculate the expected activity, we would need more information on the specific characteristics of the PKD cells and the effects of ouabain on the ATPase activity in those cells.