Figure 1 Proteins such as insulin (pictured here) are large organic molecules that fold into complex shapes
Visual Science/SPL
The terms in bold link to topics in the AQA, Edexcel, OCR, WJEC and CCEA A-level specifications, as well as the IB, Pre-U and Highers/Advanced Highers exam specifications.
An atomic force microscope uses Hooke’s law on a subatomic scale. The electrical properties of certain crystals enable small deformations to be measured, and hence the forces responsible for molecular shapes can be investigated.
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