Microscopy

Biology (Combined Science) · GCSE · AQA · AQA GCSE Combined Science: Trilogy (8464) — Biology — Foundation · Specification point · 4.1.1.5 · Cell biology · Cell structure

Microscope magnification and resolution

Cell size and orders of magnitude

Light and electron microscopy

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Learning Objectives

4.1.1.5 Microscopy

Content	Key opportunities for skills development
$Students should be able to: understand how microscopy techniques have developed over time explain how electron microscopy has increased understanding of sub-cellular structures. Limited to the differences in magnification and resolution. An electron microscope has much higher magnification and resolving power than a light microscope. This means that it can be used to study cells in much finer detail. This has enabled biologists to see and understand many more sub-cellular structures.$	$WS 1.1$
$\text{magnification}=\frac{\text{size of image}}{\text{size of real object}}$

Content

Key opportunities for skills development

Students should be able to: understand how microscopy techniques have developed over time explain how electron microscopy has increased understanding of sub-cellular structures. Limited to the differences in magnification and resolution. An electron microscope has much higher magnification and resolving power than a light microscope. This means that it can be used to study cells in much finer detail. This has enabled biologists to see and understand many more sub-cellular structures.

WS 1.1

\text{magnification}=\frac{\text{size of image}}{\text{size of real object}}

Microscopy (4.1.1.5) | AQA GCSE Combined Science: Trilogy (8464) — Biology — Foundation | KnowledgeSet