Answer:
250 nm
Explanation:
Data provided in the question:
Length of the bacteria cell = 2.5 micrometers (µm)
Now,
We know that,
1 m = 10⁶ µm
or
1 µm = 10⁻⁶ m
also,
1 m = 10⁹ nm
or
10⁻⁹ m = 1 nm
Therefore according to the above results we get,
2.5 micrometers (µm) = 2.5 × 10⁻⁶ m
and,
2.5 × 10⁻⁶ m = ( 2.5 × 10⁻⁶ ) × 10⁹ nm
= 2.5 × 10³
= 250 nm