The sweet wormwood plant (Artemisia annua) produces a chemical compound called artemisinin.
Suggest why cells in these plants produce artemisinin.
Scientists have grown genetically modified bacterial cells (such as Escherichia coli) in industrial fermenters to produce large quantities of artemisinin.
Explain how bacterial cells can be genetically modified to produce artemisinin.
Explain how an industrial fermenter can be used to grow these bacterial cells and optimize their population growth.
30 exam-style questions on Edexcel IGCSE Biology Genetic modification (genetic engineering). Each one has a worked solution and a mark scheme showing where the marks go.