Question

The size of a red blood cell is 0.000007m and that of a plant cell is 0.00001275m. Approximately, how many times bigger is the size of a plant cell larger than the size of a red blood cell? (in standard form-exponents)

Answer 1

Size of red blood cell =0.000007m = 7 × 10-6m

Size of red blood cell =0.000001275m= 1.275 × 10-5m

Therefore

7×10-6/1.275×10-5

0.000007/0.00001275

7/0.1275

1/2(approx) = 54.901

So a red blood cell is half of plant cell in size