Skip to content

Course home

Sign up

1.2 Number, size and scale

EasyMediumHard
123456789101112131415161718192021222324252627282930313233343536
Question 35
H

A student estimates that a row of cells is 1.2 × 10-3 m long and that the mean cell length is 4.0 × 10-5 m.

The measured row length is later found to be 1.5 × 10-3 m and the mean cell length 3.0 × 10-5 m.

Assume there are no gaps. Which gives the original estimated number of cells and the revised number?

[1]
A

Original estimate 30; revised number 40

B

Original estimate 40; revised number 50

C

Original estimate 30; revised number 50

D

Original estimate 40; revised number 30

Markscheme

1.2 Number, size and scale Questions

  1. GCSE
  2. /Biology
  3. /1.2 Number, size and scale

48 exam-style questions on Edexcel GCSE Biology 1.2 Number, size and scale, covering 1.2.1 Number, size and scale with estimations and 1.2.2 Quantitative units in relation to cells. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank