Figure shows how the smallest distance that could be resolved by the best microscopes available changed between the years 1600 and 2000.
Figure: Smallest distance that could be resolved by the best available microscopes, 1600 to 2000

Describe the change shown in Figure. Use data from Figure in your answer.
The first electron microscope was built in the 1930s.
Explain how the development of the electron microscope changed what scientists understood about cells.
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.