The filamentous fungus Fusarium venenatum is grown in industrial fermenters to produce mycoprotein, a sustainable meat substitute. The fungus requires nitrogen to synthesise amino acids and proteins.
Design a laboratory investigation to determine if the biomass yield of Fusarium is affected by the concentration of ammonium phosphate (the nitrogen source) in the liquid culture medium.
74 exam-style questions on Edexcel IGCSE Biology Food production. Each one has a worked solution and a mark scheme showing where the marks go.