Skip to content

Course home

1.1 Cell structure

1.1 Cell structure

EasyMediumHard
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758
Question 36
H

A student wrote the following about a culture of bacteria.

'The culture starts with 300 bacteria. After 10 divisions there will be 3000 bacteria, because 10 divisions means the number is multiplied by 10.'

a.

Explain why the student is wrong.

[2]
b.

Calculate the correct number of bacteria after 10 divisions. Give your answer in standard form.

[2]
c.

The mean division time of this bacterium is 18 minutes.

Calculate the time taken for the 10 divisions. Give your answer in hours and minutes.

[1]
Markscheme

1.1 Cell structure Questions

  1. GCSE
  2. /Biology
  3. /1.1 Cell structure

163 exam-style questions on AQA GCSE Biology 1.1 Cell structure, covering 1.1.1 Eukaryotes and prokaryotes, 1.1.2 Animal and plant cells, 1.1.3 Cell specialisation, 1.1.4 Cell differentiation, 1.1.5 Microscopy, and 1.1.6 Culturing microorganisms. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank