A palisade cell in a printed micrograph measures 14 mm across. The scale bar on the micrograph measures 8 mm and represents a real length of 40 μm40\ \mu\text{m}40 μm.
Calculate the actual width of the palisade cell.
130 exam-style questions on OCR GCSE Biology 1.1 Cell structures, covering 1.1.1 Viewing cells with light microscopes, 1.1.2 Sub-cellular structures and functions, and 1.1.3 Electron microscopy and resolution. Each one has a worked solution and a mark scheme showing where the marks go.