International A Level Biology / Microbiology

Measuring growth: cell counts and dilution plating

Edexcel International A Level Biology (YBI11), chapter 17: Microbiology, specification point 6.2. Part of the full course.

Read the revision notes · International A Level Biology past papers

Cell counts estimate the number of microorganisms in a culture. A haemocytometer measures cells in a known volume, while dilution plating counts living cells that can form colonies.

More lessons in Microbiology