A student views a thin layer of epidermal cells peeled from a rhubarb stalk using a light microscope. Twelve cells lie in a row, touching edge to edge, across the full width of the field of view. The field of view is 0.54 mm wide.
Use this information to estimate the width of one cell.
Give your answer in μm\mu\text{m}μm.
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.