GATE2014-11

Question

Since mammalian cells are sensitive to shear, scale-up of a mammalian cell process must consider, among other parameters, the following $\text{(given N=rotations/time, D=diameter of impeller)}$

• A. $\pi ND$
• B. $\pi N^2D$
• C. $\pi ND^2$
• D. none of these