From single cell of bacteria the number becomes, 2, 8, 64, ... and so on.
<u>Explanation:</u>
Bacteria is one of the best examples that show exponential growth.
The equation that shows the exponential growth of bacteria is
N = N₀ X 2ⁿ
If we consider the growth of the bacteria starts from 1 cell then,
N = 1 X 2⁰
N= 1
In 1 hour, the cell number becomes,
N = 1 X 2¹
N = 2
In 2nd hour, the cell number becomes,
N = 2 X 2²
N = 8
In 3rd hour, the cell number becomes,
N = 8 X 2³
N = 64
The growth continues exponentially and then becomes stationary after a certain period of time when enough nutrients are not present.
Thus from single cell of bacteria the number becomes, 2, 8, 64, ... and so on.