Q. A rod shaped bacterium has a length of 2 µm, diameter of 1 µm and density the same as that of water. If proteins constitute 15% of the cell mass and the average protein has a mass of 50 kDa, the number of proteins in the cell is (1 Da = 1.6 ´ 10-24g)
Ans: 2900000 to 3200000