After inoculating an agar plate, a student tapes the lid on and stores the dish upside down. Why is the dish stored upside down?
So that condensation collects in the lid instead of dripping onto the colonies
So that the colonies grow downwards into the agar rather than on its surface
So that air cannot get under the lid and contaminate the surface of the agar
So that the bacteria are spread evenly across the whole surface of the agar
139 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.