Skip to content

Course home

Sign up

1.1 Cell structure

EasyMediumHard
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101
Question 57

A food scientist investigates bacteria multiplying on a portion of cooked rice left in suitable warm conditions. At the start of the investigation, there are 1.5 × 103 bacterial cells on the rice. The bacteria reproduce by binary fission and have a mean division time of 20 minutes.

Calculate the bacterial population after 1 hour 40 minutes.

Write your answer in standard form.

[3]
Markscheme

1.1 Cell structure Questions

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

282 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