OCR GCSE Biology B · J257
Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
Revise: Electron MicroscopyA cell contains smaller structures called organelles, each with a role in its activities. Light microscopes let scientists observe cells and some organelles, including chloroplasts in plant cells. However, making an image bigger is not the same as making it clearer.